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Calendar of Physics Talks Vienna
| Elements of Loop Quantum Gravity |
| Speaker: | Wolfgang Wieland (TU Wien) |
| Abstract: | Loop Quantum gravity (LQG) is an attempt to construct a canonical quantisation of the gravitational field. Starting with an elementary --i.e. understandable-- introduction to the theory I will first discuss the construction of the underlying Hilbert space of LQG together with the major predictions on the so-called kinematical level. These include the fundamental discreteness of geometry at the Planck-scale, represented by the discrete spectrum of geometric operators corresponding to classical length, area and volume. After this introduction I will present recent developments of our group concerning the quantisation of the so-called Hamiltonian constraint, implementing the dynamics of the theory. Lunch Club Overview |
| Date: | Tue, 01.06.2010 |
| Time: | 12:30 |
| Duration: | 60 min |
| Location: | Vienna University of Technology, Seminar Room E136, 10th floor |
| Contact: | Theo Adaktylos, David Burke, Andreas Gabriel, Niklas Johansson & Christoph Spengler |
| Detection of high-dimensional genuine multi-partite entanglement of mixed states |
| Speaker: | Marcus Huber (Univ.Wien) (Fakultät für Physik) |
| Abstract: | im Rahmen des Seminars für Mathematische Physik |
| Date: | Tue, 01.06.2010 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Erwin Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock |
| Contact: | J. Yngvason |
| Speaker: | Peter West (King's College, London) |
| Abstract: | After reviewing the theory of finite dimensional semi-simple Lie algebras and then Kac-Moody algebras, I will present the evidence for an E11 symmetry of an underlying theory of strings and branes. |
| Date: | Wed, 02.06.2010 |
| Time: | 15:00 |
| Duration: | 120 min |
| Location: | ESI, Schrödinger lecture hall |
| Contact: | Erwin Schrödinger Institute |
| The Cauchy problem on a light cone |
| Speaker: | Piotr T. Chrusciel (Univ. Wien) (Fakultät für Physik) |
| Abstract: | Vortrag |
| Date: | Fri, 04.06.2010 |
| Time: | 13:30 |
| Duration: | 60 min |
| Location: | Währinger Straße 17, Seminarraum A, 2. Stock |
| Contact: | P.T. Chrusciel |
| Fractional Charges and Zero Modes & Majorana Fermions in Superconductors |
| Speaker: | Roman Jackiw (Massachusetts Institute of Technology) |
| Abstract: | The essence of quantum mechanics is that dynamical entities, like energy or angular momentum, which can take arbitrary values within classical physics, become quantized within quantum physics. I shall describe an inverse phenomenon: Classical entities like particle number or charge possess an intrinsic integrality; but they can acquire fractional values upon quantization. I shall describe how this phenomenon is realized through zero modes of a Dirac equation, and how the effect manifests itself in condensed matter materials. |
| Date: | Fri, 04.06.2010 |
| Time: | 14:15 |
| Duration: | 60 min |
| Location: | Vienna University of Technology, Freihaus, HS 5 (2nd floor, green tower) |
| Contact: | Daniel Grumiller |
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