CPT

Calendar of Physics Talks Vienna

When the best gets even better: Making ALICE FIT for LHC upgrade
Speaker:Wladyslaw Henryk Trzaska (Jyväskylä)
Abstract:The Large Hadron Collider – the world's largest and most powerful particle collider – has just underwent a major service period that boosted its energy, luminosity and consequently the discovery potential. The second performance boost is now scheduled for the mid-2018. At that point the collider will cross its intended design parameters and render most of the experimental setups inadequate to cope with the harsh radiation, high data flow and collision frequency. This is certainly true of the ALICE experiment. To face that trial ALICE has outlined her upgrade strategy and launched the construction of new or modified detector systems. The Fast Interaction Trigger (FIT) is one of them. In my talk I shall argue why ALICE needs FIT and present some of the challenges we face in making ALICE fit to continue precision characterization of the high-density, high-temperature phase of strongly inter
Date: Mon, 18.05.2015
Time: 14:00
Duration: 60 min
Location:Stefan-Meyer-Institut, Boltzmanngasse 3, 1090 Wien
Contact:Ken Suzuki

Why are there so many interpretations of quantum mechanics?
Speaker:Pierre Hohenberg (New York University)
Abstract:Quantum mechanics is unique among physical theories in that 90 years after its introduction and general acceptance as being correct and complete, its ‘interpretation’ remains a subject of controversy. Unlike classical mechanics, what quantum mechanics still lacks is a clear microscopic formulation, whereby the theory is defined for a closed system S of any size in terms of concepts relating only to S itself. Such a formulation, called Compatible Quantum Theory, is presented and shown to account for and clarify the standard quantum phenomena and paradoxes. The question of physical implementation, on the other hand, requires a macroscopic theory, to account for state preparation and the measurement of system properties. It is primarily in different versions of such macroscopic implementation mechanisms that most interpretations of quantum mechanics differ.
Date: Mon, 18.05.2015
Time: 16:30
Duration: 60 min
Location:IST Austria Raiffeisen Lecture Hall
Contact:arinya.eller@ist.ac.at

The pi^0 and eta transition form factors: hadronic contributions to the anomalous magnetic moment of the muon
Speaker:Bastian Kubis (Univ. Bonn, HISKP)
Abstract:im Rahmen des Teilchenphysikseminars: Hadronic light-by-light scattering is going to be the next stumbling Block to improve on the theoretical prediction for the anomalous magnetic Moment of the muon. Its most sizeable individual contributions are determined by the transition form factors of light flavour-neutral mesons: pi^0, eta,eta'. I will show how these form factors can be analysed in a model-independent fashion using dispersion theory, incorporating as many constraints from available experimental information as possible.
Date: Tue, 19.05.2015
Time: 16:15
Duration: 60 min
Location:Fakultät für Physik, Erwin-Schrödinger-Hörsaal, Boltzmanngasse 5, 5. Stock
Contact:A. Hoang, H. Neufeld

How general is holography?
Speaker:Daniel Grumiller (TU Wien)
Abstract:im Rahmen des Literaturseminars: The holographic principle was originally motivated by the desire to reconcile black hole evaporation with unitarity and found a concrete implementation in AdS/CFT. However, the way AdS/CFT works makes it logically possible that holography might work for non-unitary theories as well. Moreover, if holography is a true aspect of Nature then it must also work for non-AdS spacetimes. It is therefore of interest to pose the question in the title. I review recent progress on these issues, with particular focus on flat space holography
Date: Thu, 21.05.2015
Time: 14:00
Duration: 60 min
Location:Arbeitsgruppe Gravitation, Währinger Strasse 17, Seminarraum A, 2. Stock, 1090 Wien
Contact:P.T. Chrusciel

Before the Beginning and Beyond Eternity
Speaker:Sir Roger Penrose (Oxford University)
Abstract:On May 21, 2015, Sir Roger Penrose will give an IST lecture titled “Before the Beginning and Beyond Eternity”. Penrose has received numerous awards and honors including the 1988 Wolf Prize for physics, which he shared with Stephen Hawking for their contribution to our understanding of the Universe, as well as the knighthood in 1994 for his services to science. He is an internationally renowned author of many books on mathematical physics that contribute in particular to general relativity and cosmology. His latest book is called “Cycles of Time: an Extraordinary New View of the Universe” (Bodley Head, London, 2010). In his lecture, Sir Roger Penrose will talk about a recent cosmological theory stating that our current perception of the history of our universe is merely one phase (an “aeon”) of an infinite succession of similar aeons.
Date: Thu, 21.05.2015
Time: 17:00
Duration: 60 min
Location:IST Austria Raiffeisen Lecture Hall
Contact:arinya.eller@ist.ac.at

Magnetized relativistic plasma as a Weyl metal
Speaker:Volodya Miransky (University of Western Ontario)
Abstract:It has become recently established that a magnetized relativistic plasma yields an interesting example of a Weyl metal. I discuss the properties of a magnetized relativistic plasma and its possible role in some astrophysics phenomena.
Date: Fri, 22.05.2015
Time: 15:00
Duration: 60 min
Location:SEM136, Institute for Theoretical Physics, TU Wien, Wiedner Hauptstr. 8-10, 10.OG
Contact:Anton Rebhan