Faculty of Physics University of Warsaw > Events > Seminars > Leopold Infeld Colloquium (till 2017/18)

Leopold Infeld Colloquium

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Nowa A(425), Hoża 69 at 15:30

Prof. dr hab. Marek Żukowski (Instytut Fizyki Teoretycznej i Astrofizyki Uniwersytetu Gdańskiego)

Multiphoton entanglement and interferometry

Multiphoton interference reveals strictly nonclassical phenomena. Its applications range from fundamental tests of quantum mechanics to photonic quantum information processing, in which a significant fraction of key experiments achieved so far comes from multiphoton state manipulation.The progress, both theoretical and experimental, of this rapidly advancing research will be presnted. The emphasis is given to the creation of photonic entanglement of various forms, tests of the completeness of quantum mechanics (in particular, violations of local realism), quantum information protocols for quantum communication (e.g., quantum teleportation, entanglement purification, and quantum repeater). The presentation will be limited to ‘‘few-photon’’ phenomena involving measurements of discrete observables, and will be based on Rev. Mod. Phys. 84, 777 (2012).

Nowa A(425), Hoża 69 at 15:30

Prof. Dominik Stoeckinger (Technische Universitaet Dresden)

The muon anomalous magnetic moment - a precision probe of physics beyond the SM

The muon anomalous magnetic moment (g-2) is a fascinating precision observable which is sensitive to all interactions of the Standard Model. Electromagnetic, strong, and weak interactions, the masses of the heaviest particles such as top-quark and Higgs boson as well as non-perturbative low-energy hadron dynamics all enter the Standard Model prediction in a relevant way. Currently, this prediction deviates by more than 3sigma from the experimental determination. The deviation is a tantalizing hint for physics beyond the Standard Model.
In the colloquium the Standard Model prediction is reviewed and future experimental progress is indicated. We then focus on the possible contributions from physics beyond the Standard Model, particularly from supersymmetry. We show that, despite negative LHC search results, the deviation in g-2 could still well be due to effects from new physics, and at the same time g-2 places strong constraints on new physics

Nowa A(425), Hoża 69 at 15:30

Prof. Greg Galloway (University of Miami)

On the topology of black holes and beyond

In recent years there has been a great deal of interest in black holes in higher dimensional gravity. This, in particular, has led to questions about the topology of black holes in higher dimensions. In this talk we review Hawking's classical theorem on the topology of black holes in 3+1 dimensions (and its connection to black hole uniqueness) and present a generalization of it to higher dimensions. We shall also discuss recent work on the topology of space exterior to a black hole. This is closely connected to the Principle of Topological Censorship, which roughly asserts that the topology of the region outside of all black holes (andwhite holes) should be simple. The results to be discussed rely onrecent developments in the theory of marginally outer trapped surfaces. This talk is based primarily on joint work with Rick Schoen, and with Michael Eichmair and Dan Pollack.

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