Fundamental Interactions

According to our present knowledge there are four fundamental interactions in nature: gravity, electromagnetism, weak and strong interaction with electromagnetism and weak interaction unified in the electroweak theory. Gravity as well as electromagnetism are macroscopic phenomena, immediately present in our everyday life, like falling objects and static electricity. Weak and strong nuclear interactions, on the other hand, become only important on the microscopic, atomic and subatomic level.

The most important aspect of the strong interaction is that it provides stability to the nucleus overcoming electric repulsion, whereas the transmutation of neutrons into protons is the most well-known weak phenomenon. The aim of fundamental physics may be described as obtaining a deeper understanding of these interactions, and penultimately finding a unified framework, which understands the different interactions as different aspects of a single truly fundamental interaction.

[Possible topics for a Bachelor thesis]

Quantum field theory and non-commutative geometry

Describing the interactions on a more fundamental level the concepts of relativistic quantum field theories are employed. With the advent of quantum mechanics in the first decades of the 20th century it was realized that the electromagnetic field, including light, is quantized and can be seen as a stream of particles, the photons. This implies that the interaction between matter is mediated by the exchange of photons. The concept of relativistic quantum field theory is very simple, unifying a classical field theory with the concepts of quantum theory and special relativity.

Fig.: Full propagator in terms of free propagation and self-energy corrections.

The construction of the perturbative NCQFT leads to new types of infrared (IR) singularities which represent a severe obstacle for the renormalization program at higher order and therefore lead to inconsistencies. The IR singularities are produced by the so-called UV finite nonplanar one-loop graphs (which are expected to be UV divergent by naive power counting) in U(N) gauge models and also in scalar field theories. The interplay between expected UV divergencies and the existence of the IR singularities is the so-called UV/IR mixing problem of NCQFT. One also has to stress that the usual UV divergences may be removed by the standard renormalization procedure.

The present research activities are devoted to find solutions for the UV/IR mixing problem of noncommutative gauge field models. In order to respect the effects of noncommutativity implied by the non-abelian structure a consistent treatment requires the use of the BRS quantization procedure even for a U(1) deformed Maxwell theory.

Gravitation

Since the groundbreaking work of Einstein, gravitation is conceived as defining the geometry of spacetime - even defining the very concepts of time and space itself. Planetary motion as well as the motion of massless particles, that is to say light, become the straightest possible paths in a non-Euclidean geometry.

Fig.: Light-cone of an event representing its causal past and future.

General relativity is a very successful theory. Its predictions range from the deflection of light by massive bodies which distort spacetime (Einstein-lensing) to that of gravitational radiation carrying away energy in the form of "ripples" in spacetime (Hulse-Taylor binary pulsar), as well as to the expansion of the universe (microwave background radiation). One of the most spectacular predictions of general relativity is the existence of black holes, which by now has been confirmed indirectly by numerous astrophysical observations.

Despite of these successes there are several unresolved problems in the physics of gravitation, some of which are considered as the biggest problems in contemporary theoretical physics:

The cosmological constant problem entails a gigantic discrepancy (123 orders of magnitude) between observation and naive theoretical expectation, and so far no satisfying explanation exists that resolves this discrepancy.

Numerous astrophysical and cosmological observations reveal discrepancies with the theory of general relativity, unless we postulate the existence of dark matter, which so far has not been detected in particle physics experiments.

The elusive theory of quantum gravity still is very much a theory under construction, with several conceptual and technical issues seeking for solutions.

General relativity predicts its own failure as a consequence of the famous singularity theorems. Physically this means that spacetime contains regions where the curvature grows without a bound. The most prominent examples are the singularities within black holes as well as the Big Bang singularity.

Deeper insights into the structure of physical systems have often been achieved by the imposition of symmetries. This usually breaks the problem down into simpler building blocks which ideally allow a complete solution. Gravity is no exception to this rule since the prototypic black-hole solution, the Schwarzschild geometry (actually the first exact non-trivial solution of the Einstein-equations), has been found precisely along theses lines, i.e. upon imposing spherical symmetry. It is therefore natural to pursue a similar plan of attack for the quantization of gravity. The corresponding models become gravitational theories in a 1+1 dimensional spacetime coupled to the area of the two-sphere which becomes a dynamical variable in the reduced theory. There are several other ways how lowerdimensional (1+1 and 2+1) models arise from higherdimensional configurations in string theory or general relativity, and the description of gravity in lower dimensions is one of the key research fields of our group.

Quark-Gluon plasma

Quantum chromodynamics (QCD) is the accepted theory of the strong interactions responsible for the binding of quarks into hadrons such as protons and neutrons, and the binding of protons and neutrons into atomic nuclei. The fundamental particles of QCD, the quarks and gluons, carry a new form of charge, which is called color because of its triplet nature in the case of the quarks (e.g. red, green, blue); gluons come in eight different colors which are composites of color and anticolor charges. However, quarks and gluons have never been observed as free particles. Nevertheless, because quarks have also electrical charge, they can literally be seen as constituents of hadrons by deep inelastic scattering using virtual photons. The higher the energy of the probing photon, the more do the quarks appear as particles propagating freely within a hadron. This feature is called "asymptotic freedom". It arises from so-called nonabelian gauge field dynamics, with gluons being the excitations of the nonabelian gauge fields similarly to photons being the excitations of the electromagnetic fields, except that gluons also carry color charges. Asymptotic freedom is well understood, and the Nobel prize was awarded to its main discoverers Gross, Politzer, and Wilczek in 2004.

Much less understood is the phenomenon of "confinement", which means that only color-neutral bound states of quarks and gluons exist. This confinement can in fact be broken in a medium if the density exceeds significantly that of nuclear matter. When hadrons overlap so strongly that they loose their individuality, quarks and gluons come into their own as the elementary degrees of freedom. It is conceivable that such conditions are realized in the cores of certain neutron stars.

Fig.: Qualitative sketch of the phase diagram of quark-gluon matter as a function of temperature T and quark chemical potential µ. Solid lines denote rst-order phase transitions, the dashed line a rapid crossover.

At comparatively low temperatures, quark matter is known to form Cooper pairs and turns into a color superconductor. Also at temperatures just above the superconductivity phase new phenomena appear, which reflect that quark matter has strong deviations from an ideal Fermi liquid. In particular, there is anomalous behaviour in the low-temperature specific heat, which has been calculated for the first time systematically by our group. This has already found application in revised calculations of the cooling behavior of young neutron stars.

String theory

The names of the fundamental forces are related to their strength. The strong force is much stronger than electromagnetism and is thus able to overcome the repulsive force between objects with the same electrical charge (protons or quarks). The weak force is weaker than electromagnetism but still much stronger than gravity. The reason that we almost only recognize gravity in everyday life is that the macroscopic objects are neutral. They don't carry an effective color charge and they carry - if at all - only very small electric charges. For gravity there is no negative charge (negative mass), so that all the small gravitational effects add up to something which is strong enough to move galaxies and build black holes. The seperate description of the forces is quite accurate by now. This is summarized in the standard model of particle physics.

There is only one particle (the Higgs boson), which is predicted by the standard model and has not yet been found. A measure for the strength of a force are the coupling constants of the corresponding theory. They are, however, not constant, but depend on the energy level one is dealing with. If one extrapolates their values to high energies, one discovers that the couplings of electromagnetism, strong and weak force meet at a certain energy level almost in one single point (see Figure 1). This supports the idea that those three forces could be just different aspects of one and the same universal force. There are several theories which try to describe this unification. They are called GUTs, 'grand unified theories'. However, to be really 'grand', such a unification should also include gravity, whose coupling constant is far weaker still at this high energies. The theory, which will manage to unify all forces, including gravity, is sometimes called TOE, "theory of everything". String theory is one candidate, and at present actually the only one for this TOE.

Fig.: Left: Point particle interaction, Right: Closed string interaction, note the smooth interaction surface.

'SUSY' stands for supersymmetry and means that there is an exchange symmetry between fermionic particles (like quarks and electrons) and bosonic ones (like photons and even gravitons, if one includes gravity into the considerations). It does, however, not relate the already known particles, but it predicts new supersymmetric partners to the known particles (called e.g. squarks, selectrons, photinos and gravitinos). So far none of those superparticles has been discovered, but there are a lot of theoretical reasons for believing in supersymmetry. Supersymmetry is an integral part of string theory, or more precisely 'superstring theory'. Within one year now, the new accelerator LHC (large hadron collider) at CERN will start and try to produce the Higgs boson and the superparticles mentioned above and will therefore also be a first test for string theory.

For further information and news on fundamental physics visit:

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This contains the public outreach web pages of the Fachausschuss für Kern- und Teilchenphysik (FAKT) of the ÖPG (Austrian Physical Society), which our institute are hosting.

TUW-16-01 P. Anastasopoulos, M. Bianchi Revisiting light stringy states in view of the 750 GeV diphoton excess 1601.07584

TUW-16-02 E. Hatefi, On D-brane-Anti D-brane Effective actions and their all order Bulk Singularity Structures 1601.06667

TUW-16-03 R. Kallosh, A. Linde, T. Wrase Coupling the Inflationary Sector to Matter 1602.07818

TUW-16-04 J. Knapp, M. Romo and E. Scheidegger, Hemisphere Partition Function and Analytic Continuation to the Conifold Point 1602.01382

TUW-16-05 S. Ferrara, R. Kallosh, A. Van Proeyen and T. Wrase, Linear Versus Non-linear Supersymmetry, in General 1603.02653

TUW-16-06 Hamid Afshar, Stephane Detournay, Daniel Grumiller, Wout Merbis, Alfredo Perez, David Tempo and Ricardo Troncoso, Soft Heisenberg hair on black holes in three dimensions 1603.04824

TUW-16-07 Christian Ecker, Daniel Grumiller, Philipp Stanzer, Stefan Stricker and Wilke van der Schee Monitoring shock wave collisions with nonlocal observables 1609.03676

TUW-16-08 E. Hatefi, On SYM theory and all order Bulk Singularity Structures of BPS Strings in type II theory 1603.05245

TUW-16-09 E. Hatefi, On Bulk Singularity Structures and all order α′ Contact Terms of BPS String Amplitudes 1604.03514

TUW-16-10 B. Vercnocke and T. Wrase, Constraint superfields from an anti-D3-brane 1605.03961

TUW-16-11 R. Kallosh, B. Vercnocke and T. Wrase, String Theory Origin of Constrained Multiplets 1606.09245

TUW-16-12 R. Kallosh, A. Linde, D. Roest and T. Wrase, Sneutrino Inflation with $\alpha$-attractors 1607.08854

TUW-16-13 D. Grumiller, A. Pérez , S. Prohazka, D. Tempo, and R. Troncoso, Higher spin black holes with soft hair and their asymptotic structure in 3D 1607.05360

TUW-16-14 D. Gelfand, A. Ipp, D. Müller, Simulating collisions of thick nuclei in the color glass condensate framework 1605.07184

TUW-16-15 D. Gelfand, F. Hebenstreit, J. Berges, Early quark production and approach to chemical equilibrium 1601.03576

TUW-16-16 D. Grumiller, M. Riegler, Most general AdS_3 boundary conditions 1608.01308

TUW-16-17 D. Grumiller, J. Salzer, D. Vassilevich, Aspects of AdS_2 holography with non-constant dilaton 1607.06974

TUW-16-18 H. Afshar, D. Grumiller, M.M. Sheikh-Jabbari, Near Horizon Soft Hairs as Microstates of Three Dimensional Black Holes 1607.00009

TUW-16-19 E. Hatefi, Remarks on Non-BPS String Amplitudes and their all order \alpha' Contact Interactions 1609.01385

TUW-16-20 P. Anastasopoulos, M. Bianchi, D. Consoli, Yukawa's of light stringy states 1609.09299

TUW-16-21 I. Lodato, W. Merbis super-BMS_3 algebras from N=2 flat supergravities 1610.07506

TUW-16-22 E. Hatefi, On WZ and RR Couplings of BPS Branes and their all order Corrections in IIB, IIA 1611.abcde

TUW-16-23 H. Afshar, D. Grumiller, W. Merbis, A. Perez, D. Tempo, and R. Troncoso, Soft hairy horizons in three spacetime dimensions 1611.09783

TUW-16-24 A. Bagchi, M. Gary, Zodinmawia, The BMS Bootstrap 1612.xxxx

2015

TUW-15-01 F. Brünner, D. Parganlija, and A. Rebhan, Glueball Decay Rates in the Witten-Sakai-Sugimoto Model 1501.07906

TUW-15-02 F. Brünner, D. Parganlija, and A. Rebhan, Top-down Holographic Glueball Decay Rates 1502.00456

TUW-15-03 P. Anastasopoulos, R. Richter and A. N. Schellekens, Discrete symmetries from hidden sectors 1502.02686

TUW-15-04 E. A. Bergshoeff, K. Dasgupta, R. Kallosh, A. Van Proeyen and T. Wrase, anti-D3 and dS 1502.07627

TUW-15-05 V. Keranen, H. Nishimura, S. Stricker, O. Taanila and A. Vuorinen, Gravitational collapse of thin shells: Time evolution of the holographic entanglement entropy, 1502.01277

TUW-15-06 K. Bouchachia, S. Kouadik, M. Hachemane and M. Schweda, One loop radiative corrections to the translation-invariant noncommutative Yukawa Theory, 1502.02992

TUW-15-07 H. Balasin, D. N. Blaschke, F. Gieres and M. Schweda, On the energy-momentum tensor in Moyal space, 1502.03765

TUW-15-08 R. C. Rashkov and T. Vetsov, Holographic mesons in global Pilch-Warner background geometry 1502.044930

TUW-15-09 A. S. Christensen, J. C. Myers, P. D. Pedersen, and J. Rosseel, Calculating the chiral condensate diagrammatically at strong coupling 1502.04865

TUW-15-10 D. Parganlija, Scalar Glueball in a Top-Down Holographic Approach to QCD, 1503.00550

TUW-15-11 F. Brünner and A. Rebhan, Nonchiral enhancement of scalar glueball decay in the Witten-Sakai-Sugimoto model 1504.05815

TUW-15-12 C. Ecker, D. Grumiller and S. Stricker, Evolution of holographic entanglement entropy in an anisotropic system 1506.02658

TUW-15-13 A. Bagchi, D. Grumiller and W. Merbis, Stress tensor n-point correlators in three-dimensional gravity 1507.05620

TUW-15-14 H. Skarke, Cosmic Acceleration as an Optical Illusion 1508.01510

TUW-15-15 R. Kallosh, T. Wrase, De Sitter Supergravity Model Building 1509.02137

TUW-15-16 E. Bergshoeff, J. Rosseel, T. Zojer, Newton-Cartan (super)gravity as a non-relativistic limit 1505.02095

TUW-15-17 E. Bergshoeff, J. Rosseel, T. Zojer, Newton-Cartan supergravity with torsion and Schroedinger supergravity 1509.04527

TUW-15-18 D. Grumiller and W. Merbis, Free energy of topologically massive gravity and flat space holography 1509.08505

TUW-15-19 V. Breunhölder, M. Gary, D. Grumiller and S. Prohazka, Null warped AdS in higher spin gravity 1509.08487

TUW-15-20 D. Grumiller, J. Salzer and D. Vassilevich, AdS_2 holography is (non-)trivial for (non-)constant dilaton 1509.08486

TUW-15-21 M. Schillo, E. van der Woerd and T. Wrase, The general de Sitter supergravity component action 1511.01542

TUW-15-22 H. Afshar, S. Detournay, D. Grumiller and B. Oblak, Near-Horizon Geometry and Warped Conformal Symmetry 1512.08233

TUW-15-23 F. Brünner and A. Rebhan, Constraints on the ηη′ decay rate of a scalar glueball from gauge/gravity duality 1510.07605

TUW-15-24 F. Brünner and A. Rebhan, Glueball Decay in the Witten-Sakai-Sugimoto Model and Finite Quark Masses 1510.08452

TUW-15-25 F. Brünner, D. Parganlija, and A. Rebhan, Glueball decay patterns in top-down holographic QCD 1511.01391

TUW-15-26 A. Mukhopadhyay, F. Preis, A. Rebhan, and A. Rebhan, Semi-Holography for Heavy Ion Collisions: Self-Consistency and First Numerical Tests 1512.06445

TUW-15-27 N. Behr and A. Mukhopadhyay, Holography as a highly efficient RG flow II: An explicit construction 1512.09055

TUW-15-28 E.Hatefi, On RR Couplings and Bulk Singularity Structures of Non-BPS Branes 1511.04971

2014

TUW-14-01 M. Gary, D. Grumiller, S. Prohazka, and S.-J. Rey, Lifshitz Holography with Isotropic Scale Invariance hep-th/1406.1468

TUW-14-02 S. Detournay, D. Grumiller, F. Schöller and J. Simon, Variational principle and 1-point functions in 3-dimensional flat space Einstein gravity hep-th/1402.3687

TUW-14-03 D. Grumiller, R. McNees and J. Salzer, Black holes and thermodynamics - The first half century hep-th/1402.5127

TUW-14-04 H. Afshar, T. Creutzig, D. Grumiller, Y. Hikida and P. Ronne, Unitary W-algebras and three-dimensional higher spin gravities with spin one symmetry 1404.0010

TUW-14-05 D. Grumiller, M. Riegler and J. Rosseel, Unitarity in three-dimensional flat space higher spin theories hep-th/1403.5297

TUW-14-06 V. Keranen, H Nishimura, S. Stricker, O. Taanila, A. Vuorinen, Universality in holographic entropy production 1405.7015

TUW-14-07 A. Bagchi, S. Detournay, D. Grumiller, S. Prohazka and M. Riegler, Holographic Chern-Simons Theories 1404.1919

TUW-14-08 D. Grumiller, R. McNees and J. Salzer, Cosmological constant as confining U(1) charge in two-dimensional dilaton gravity 1406.7007

TUW-14-09 Harald Skarke, The Evolution of an Inhomogeneous Universe 1407.6602

TUW-14-10 A. Bagchi, D. Grumiller, J. Salzer, S. Sarkar and F. Schöller, Flat space cosmologies in two dimensions 1408.5337

TUW-14-11 P. Anastasopoulos and R. Richter, Light stringy state production 1408.4810

TUW-14-12 M. Riegler, Flat space limit of Cardy formula 1408.6831

TUW-14-13 R. Baier, H. Nishimura, S. Stricker, Scalar field collapse with negative cosmological constant 1410.3495

TUW-14-14 A. Bagchi, R. Basu, D. Grumiller, M. Riegler, Entanglement entropy in Galilean conformal field theories and flat holography 1410.4089

TUW-14-15 M. Gary, D. Grumiller, M. Riegler and J. Rosseel, Flat space (higher spin) gravity with chemical potentials 1411.3728

TUW-14-16 A. Rebhan, The Witten-Sakai-Sugimoto model: A brief review and some recent results 1410.8858

2013

TUW-13-01 D. Grumiller, W. Riedler, J. Rosseel and T. Zojer, Holographic applications of logarithmic conformal field theories hep-th/1302.0280

TUW-13-02 M. Attems, A. Rebhan, M. Strickland, Longitudinal thermalization via the chromo-Weibel instability hep-ph/1301.7749

TUW-13-03 M. Attems, A. Rebhan, M. Strickland, The chromo-Weibel instability in an expanding background hep-ph/1302.5098

TUW-13-04 Roberto Emparan, Daniel Grumiller and Kentaro Tanabe, Large D gravity and low D strings hep-th/1303.1995

TUW-13-05 Steineder, Stricker, Vuorinen, Probing the pattern of holographic thermalization with photons hep-ph/1304.3404

TUW-13-06 Arjun Bagchi, Stephane Detournay and Daniel Grumiller, Joan Simon, Cosmic evolution from phase transition of 3-dimensional flat space hep-th/1305.2919

TUW-13-07 R. Andringa, E. Bergshoeff, J. Rosseel and E. Sezgin, Newton-Cartan Supergravity hep-th/1305.6737

TUW-13-08 S. Stricker, Holographic thermalization in N=4 Super Yang-Mills theory at finite coupling hep-th/1307.2736

TUW-13-09 H. Afshar, A. Bagchi, R. Fareghbal, D. Grumiller and J. Rosseel, Higher spin theory in 3-dimensional flat space, hep-th/1307.4768

TUW-13-10 H. R. Afshar, Flat/AdS boundary conditions in three dimensional conformal gravity, hep-th/1307.4855

TUW-13-11 M. Gary, Still No Rindler Firewalls, hep-th/1307.4972

TUW-13-12 K. Hori and J. Knapp, Linear Sigma Models With Strongly Coupled Phases - One Parameter Models, hep-th/1308.xxxx

TUW-13-13 R. Baier, S. Stricker, O. Taanila, Critical scalar field collpase in AdS3: an analytic approach, hep-th/1309.xxxx

TUW-13-14 D. Parganlija, P. Kovacs, Gy. Wolf, F. Giacosa and D. Rischke, Eta, Eta' and eLSM, hep-ph/1301.3478

TUW-13-15 D. Grumiller, M. Irakleidou, I. Lovrekovic and R. McNees, Conformal gravity holography in four dimensions, hep-th/1310.0819

TUW-13-16 Harald Skarke, Inhomogeneity implies Accelerated Expansion, astro-ph.CO/1310.1028

TUW-13-17 D. Arnaudov, R.C. Rashkov and T. Vetsov, On the algebraic curves for circular and folded strings in AdS5 x S5, hep-th/1311.6114

TUW-13-18 Daniel Grumiller, Mauricio Leston and Dmitri Vassilevich, Anti-de Sitter holography for gravity and higher spin theories in two dimensions, hep-th/1311.7413

2012

TUW-12-01 M. Gary, D. Grumiller and R. Rashkov, Towards non-AdS holography in 3-dimensional higher spin gravity hep-th/1201.0013

TUW-12-02 P. Anastasopoulos, I. Antoniadis, K. Benakli, M.D.Goodsel and A. Vichi, One-loop adjoint masses for branes at non-supersymmetric angles hep-th/1201.2663

TUW-12-03 A. Ipp, J. Evers, C. H. Keitel, K. Z. Hatsagortsyan, Streaking at high energies with electrons and positrons hep-ph/1202.0180

TUW-12-04 A.P. Braun, A. Collinucci and R. Valandro, Algebraic description of G-flux in F-theory: new techniques for F-theory phenomenology hep-th/1202.5029

TUW-12-05 H. Steinacker, Gravity and compactified branes in matrix models hep-th/1202.6306

TUW-12-06 Gabriela-Raluca Mocanu and Daniel Grumiller Self-organized criticality in boson clouds around black holes astro-ph/1203.4681

TUW-12-07 Victor Batyrev and Maximilian Kreuzer Conifold degenerations of Fano 3-folds as hypersurfaces in toric varieties math.AG/1203.6058

TUW-12-08 Harald Skarke How to Classify Reflexive Gorenstein Cones hep-th/1204.1181

TUW-12-09 Niklas Johansson, Ali Naseh and Thomas Zojer Holographic two-point functions for 4d log-gravity hep-th/1205.5804

TUW-12-10 A.P. Braun, J.Knapp, E.Scheidegger, H.Skarke and N.-O. Walliser PALP: a User Manual math.AG/1205.4147

TUW-12-11 D.Arnaudov, R.C.Rashkov On semiclassical four-point correlators in AdS5 x S5 hep-th/1206.2613

TUW-12-12 A. Ipp, P. Somkuti Yoctosecond metrology through HBT correlations from a quark-gluon plasma hep-th/1207.0197

TUW-12-13 R. Baier, S. Stricker, O. Taanila, A. Vuorinen Production of Prompt Photons: Holographic Duality and Thermalization hep-ph/1207.1116

TUW-12-14 R. Baier, S. Stricker, O. Taanila, A. Vuorinen Holographic dilepton production in a thermalizing plasma hep-ph/1205.2998

TUW-12-15 A. Rebhan, D. Steineder Probing Two Holographic Models of Strongly Coupled Anisotropic Plasma hep-th/1205.4684

TUW-12-16 M. Attems, A. Rebhan, M. Strickland Instabilities of an anisotropically expanding non-Abelian plasma: 3D+3V discretized hard-loop simulations hep-ph/1207.5795

TUW-12-17 P. Candelas, A. Constantin, H. Skarke An Abundance of K3 Fibrations from Polyhedra with Interchangeable Parts hep-th/1207.4792

TUW-12-18 A. Gynther, A. Rebhan, D. Steineder Thermodynamics and phase diagram of anisotropic Chern-Simons deformed gauge theories hep-th/1207.6283

TUW-12-19 Michal Michalcik, Radoslav C. Rashkov, "On finite size corrections to the dispersion relations of giant magnon and single spike on γ-deformed T^{1,1}" hep-th/1208.0698

TUW-12-20 Arjun Bagchi, Stephane Detournay and Daniel Grumiller Flat-Space Chiral Gravity hep-th/1208.1658

TUW-12-21 Stanley Deser, Sabine Ertl and Daniel Grumiller Canonical bifurcation in higher derivative, higher spin, theories hep-th/1208.0339

TUW-12-22 H. Afshar, M. Gary, D. Grumiller, R. Rashkov and M. Riegler Non-AdS holography in 3-dimensional higher spin gravity - General recipe and example hep-th/1209.2860

TUW-12-23 D. Steineder, S. A. Stricker and A. Vuorinen Thermalization at intermediate coupling hep-ph/1209.0291

TUW-12-24 M. Gary A Holographic Holographic Bound and the Black Hole S-Matrix hep-th/1209.3040

TUW-12-25 M. Bertin, S. Ertl, P. Ghorbani, D. Grumiller, N. Johansson and D. Vassilevich Lobachevsky holography in conformal Chern-Simons gravity hep-th/1212.3335

TUW-12-26 J. Aparicio, D. Grumiller, E. Lopez, I. Papadimitriou and S. Stricker Bootstrapping gravity solutions hep-th/1212.3609

TUW-12-27 Harald Skarke Why is the Legendre Transformation Involutive? math-ph/1209.6193

TUW-12-28 K. Chelabi, M. Schweda and S. Kouadik Translation-Invariant Renormalizable Noncommutative Chern-Simons Theory hep-th/1207.4591

TUW-12-29 D. N. Blaschke, T. Garschall, F. Gieres, F. Heindl, M. Schweda and M. Wohlgenannt On the Renormalization of Non-Commutative Field Theories hep-th/1207.5494

TUW-12-30 D. Grumiller, R. McNees and S. Zonetti, Black holes in the conical ensemble, gr-qc/1210.6904

TUW-12-31 A. Ipp, Unstable dynamics of Yang-Mills fields at early times of heavy ion collisions, hep-th/1210.5150

TUW-12-32 P. Anastasopoulos, M. Cvetic, R. Richter, P. Vaudrevange Discrete symmetries in semi-realistic orientifold compactifications, hep-th/1210.xxxx

TUW-12-33 P. Anastasopoulos, M. Goodsell, R. Richter, Excited twist correlators in open string models, hep-th/1211.xxxx

TUW-12-34 H. Afshar, M. Gary, D. Grumiller, R. Rashkov and M. Riegler, Semi-classical unitarity in 3-dimensional higher-spin gravity for non-principal embeddings, hep-th/1211.4454

TUW-12-35 H. Afshar, H. Firouzjahi and S. Parvizi, dS solutions with co-dimension two branes in six dimensions, hep-th/1212.xxxx

TUW-12-36 D. Parganlija, Quarkonium Phenomenology in Vacuum, hep-ph/1208.0204

TUW-12-37 D. Parganlija, P. Kovacs, Gy. Wolf, F. Giacosa and D. Rischke, Meson vacuum phenomenology in a three-flavor linear sigma model with (axial-)vector mesons, hep-ph/1208.0585

TUW-12-38 D. Parganlija, P. Kovacs, Gy. Wolf, F. Giacosa and D. Rischke, Phenomenology of Axial-Vector Mesons from an Extended Linear Sigma Model, hep-ph/1208.2054

TUW-12-39 D. Parganlija, P. Kovacs, Gy. Wolf, F. Giacosa and D. Rischke, Scalar mesons in a linear sigma model with (axial-)vector mesons, hep-ph/1208.5611

TUW-12-40 F. Giacosa, D. Parganlija, P. Kovacs and Gy. Wolf, Phenomenology of light mesons within a chiral approach, hep-ph/1208.6202

TUW-12-41 D. Parganlija, Scalar Mesons and FAIR, hep-ph/1211.4804

2011

TUW-11-01 R. S. Garavuso, L. Katzarkov, M. Kreuzer and A. Noll, Super Landau-Ginzburg mirrors and algebraic cycles hep-th/1101.1368

TUW-11-02 J. Knapp, M. Kreuzer, C. Mayrhofer and N.-O. Walliser, Toric Construction of Global F-Theory GUTs, JHEP03(2011)138, hep-th/1101.4908

TUW-11-03 J. Knapp and M. Kreuzer, Toric Methods in F-theory Model Building hep-th/1103.3358

TUW-11-04 A. Ipp, Yoctosecond photon pulse generation in heavy ion collisions hep-ph/1102.0420

TUW-11-05 S. Carloni, D. Grumiller and F. Preis, Solar system constraints on Rindler acceleration astro-ph/1103.0274

TUW-11-06 M. Bertin, D. Grumiller, D. Vassilevich and T. Zojer, Generalised massive gravity one-loop partition function and AdS/(L)CFT hep-th/1103.5468

TUW-11-07 H. Afshar, B. Cvetkovic, S. Ertl, D. Grumiller and N. Johansson, Holograms of Conformal Chern-Simons Gravity hep-th/1106.6299

TUW-11-08 D. Arnaudov, R.C. Rashkov, and T. Vetsov, Three- and four-point correlators of operators dual to folded string solutions in AdS_5 x S^5 hep-th/1103.6145

TUW-11-09 P. Anastasopoulos, I. Antoniadis, K. Benakli, M.D.Goodsel and A. Vichi, One-loop adjoint masses for non-supersymmetric intersecting branes hep-th/1105.0591

TUW-11-10 D. Arnaudov and R.C. Rashkov, Quadratic corrections to three-point functions hep-th/1106.0859

TUW-11-11 D. Arnaudov and R.C. Rashkov, Three-point correlators: examples from Lunin-Maldacena background hep-th/1106.4298

TUW-11-12 A. P. Braun and N.-O. Walliser, A new offspring of PALP hep-th/1106.4529

TUW-11-13 A. Rebhan and D. Steineder, Electromagnetic signatures of a strongly coupled anisotropic plasma hep-th/1106.3539

TUW-11-14 M. Cicoli, M. Kreuzer and Christoph Mayrhofer, Toric K3-Fibred Calabi-Yau Manifolds with del Pezzo Divisors for String Compactifications hep-th/1107.0383

TUW-11-15 D. Grumiller and F. Preis, Rindler force at large distances astro-ph/1107.2373

TUW-11-16 C.-M. Chen, S. Hu, T. Li, D.V. Nanopoulos, Type IIB Supersymmetric Flux vacua hep-th/1107.3465

TUW-11-17 K. Z. Hatsagortsyan, A. Ipp, J. Evers, A. Di Piazza, and C. H. Keitel, Ultra-strong laser pulses: streak-camera for gamma-rays via pair production and quantum radiative reaction physics.ins-det/1107.4036

TUW-11-18 D. Burke and R. Wimmer, Quantum energies and tensorial central charges of confined monopoles hep-th/1107.3568

TUW-11-19 A.P. Braun, A. Collinucci and R. Valandro, G-Flux in F-theory and algebraic cycles hep-th/1107.5337

TUW-11-20 A.P. Braun, N. Johansson, M. Larfors and N.-O. Walliser, Restrictions on infinite sequences of type IIB vacua hep-th/1108.1394

TUW-11-21 S. Carlip and D. Grumiller, Lower bound on the spectral dimension near a black hole gr-qc/1108.4686

TUW-11-22 H. Afshar, B. Cvetkovic, S. Ertl, D. Grumiller and N. Johansson, Conformal Chern-Simons holography - lock, stock and barrel hep-th/1110.5644

TUW-11-23 P. Anastasopoulos, M. Bianchi and R. Richter, Light stringy states hep-th/1110.5424

TUW-11-24 P. Anastasopoulos, M. Bianchi and R. Richter, On closed-string twist-field correlators and their open-string descendants hep-th/1110.5359

TUW-11-25 Michal Michalcik, Radoslav C. Rashkov, Maria Schimpf, Three-point correlators: Examples from Lunin-Maldacena background hep-th/1107.5795

TUW-11-26 D. Arnaudov and R.C. Rashkov, Subleading semiclassical four-poinr functions hep-th/1111.xxxx

TUW-11-27 F. Preis, A. Rebhan and A. Schmitt, Holographic baryonic matter in a background magnetic field hep-th/1109.6904

TUW-11-28 A. Rebhan and D. Steineder, Violation of the Holographic Viscosity Bound in a Strongly Coupled Anisotropic Plasma hep-th/1110.6825

2010

TUW-10-01 D.N. Blaschke, E. Kronberger, R.I.P. Sedmik and M. Wohlgenannt, Gauge Theories on Deformed Spaces math.AG/1106.4529

TUW-10-02 V.G. Filev and R.C. Rashkov, Magnetic Catalysis of Chiral Symmetry Breaking. A Holographic Prospective. hep-th/1010.0444

TUW-10-03 S. Ertl, D. Grumiller and N. Johansson, All stationary axi-symmetric local solutions of topologically massive gravity. hep-th/1006.3309

TUW-10-04 A. Gynther, K. Landsteiner, F. Pena-Benitez and A. Rebhan, Holographic Anomalous Conductivities and the Chiral Magnetic Effect hep-th/1005.2587

TUW-10-05 C. P. Herzog, S. A. Stricker and A. Vuorinen, Hyperfine splitting and the Zeeman effect in holographic heavy-light mesons hep-th/1005.3285

TUW-10-06 C.-M. Chen and Y.-C. Chung, Flipped SU(5) GUTs from E8 singularity in F-theory hep-th/1005.5728

TUW-10-07 C.-M. Chen , J. Knapp , M. Kreuzer and C. Mayrhofer, Global SO(10) F-theory GUTs hep-th/1005.5735

TUW-10-08 M. Schweda and M. Wohlgenannt, On NCQFT and dimensionless insertions hep-th/1005.5107

TUW-10-09 D. Arnaudov, H. Dimov and R.C. Rashkov, On the pulsating strings in $AdS_5\times T^{1,1}$ hep-th/1005.1539

TUW-10-10 Jean-Paul Blaizot, Andreas Ipp, Nicolás Wschebor, Calculation of the pressure of a hot scalar theory within the Non-Perturbative Renormalization Group hep-th/1007.0991

TUW-10-11 Matthias R. Gaberdiel, Daniel Grumiller and Dmitri Vassilevich, Graviton 1-loop partition function for 3-dimensional massive gravity hep-th/1007.5189

TUW-10-12 Andreas Ipp, Jörg Evers, Christoph H. Keitel, Karen Z. Hatsagortsyan, Streaking at high energies with electrons and positrons hep-th/1008.0355

TUW-10-13 Daniel Grumiller, Niklas Johansson and Thomas Zojer, Short-cut to new anomalies in gravity duals to logarithmic conformal field theories hep-th/1010.4449

TUW-10-14 Matteo Beccaria, Maximilian Kreuzer and Andrea Puhm, Counting charged massless states in the (0,2) heterotic CFT/geometry connection hep-th/1010.4564

TUW-10-15 C.-M. Chen and Y.-C. Chung, On F-theory E₆ GUTs hep-th/1010.5536

TUW-10-16 P. Anastasopoulos, G. K. Leontaris, R. Richter, A. N. Schellekens, SU(5) D-brane realizations, Yukawa couplings and proton stability hep-th/1010.5188

TUW-10-17 Andreas Ipp, Anton Rebhan, Michael Strickland, Non-Abelian plasma instabilities: SU(3) vs. SU(2) hep-ph/1012.0298

TUW-10-18 M.E. Carrington and A. Rebhan, Perturbative and Nonperturbative Kolmogorov Turbulence in a Gluon Plasma hep-ph/1011.0393

TUW-10-19 Daniel Grumiller, Model for gravity at large distances astro-ph/1011.3625

TUW-10-20 D. Arnaudov and R.C. Rashkov, On semiclassical calclation of three-point functions in AdS_4 x CP^3 hep-th/1011.4669

TUW-10-21 F. Preis, A. Rebhan and A. Schmitt, Inverse magnetic catalysis in dense holographic matter hep-th/1012.4785

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For published articles, talks, and poster presentations see Publications

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