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

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at 16:30

60 lat Instytutów Fizyki Doświadczalnej i Fizyki Teoretycznej UW

Szanowni Państwo,

W maju 1952 roku utworzone zostały w Uniwersytecie Warszawskim Instytuty: Fizyki Doświadczalnej i Fizyki Teoretycznej.

W poniedziałek 21 maja 2012 o 16:30 w SDD odbędzie się konwersatorium, podczas którego swoimi refleksjami podzielą się profesorowie Wojciech Królikowski i Andrzej Kajetan Wróblewski. Po konwersatorium zapraszamy na poczęstunek w salach SDT i SST.

Tomasz Matulewicz
Marek Napiórkowski

Nowa A(425), Hoża 69 at 15:30

Prof. dr hab. Marek Trippenbach (Instytut Fizyki Teoretycznej Wydziału Fizyki UW)

Cold Atoms Physics

In my presentation I am planning to review our research in the context of recent experimental achievements and development of quantum technologies with cold atoms. The studies of Bose Einstein condensates of neutral atoms last almost for two decades but they did not loose their momentum, mostly due to rapid development of experimental techniques and original ideas. I am going to talk about the realization of Josephson junction and correlated pairs creation in the collisions of the condensates, as a potential source of entangled atoms.

Nowa A(425), Hoża 69 at 15:30

Dr hab. Jakub Tworzydło (Instytut Fizyki Teoretycznej Wydzialu Fizyki UW)

Majorana fermions in superconductors

Majorana fermions (particles which are their own antiparticle) canbe constructed in condensed matter context out of electron and holeexcitations. The necessary ingredients are the presence of a superconductor to hide the charge difference and a Berry phase toeliminate the energy of zero-point motion.

I will discuss a particular mechanism for the formation of Majorana bound states. An atomic-scale electrostatic line defect in a p-wavesuperconductor can have a pair of Majorana bound states at the end points. This mechanism explains also the appearance of a thermal metal in lattice models of p-wave superconductors. The transition to the metallic phase of deconfined Majorana states takes place as the electrostatic disorder is increased.

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