[institut] SCL seminar, Ivana Vasic (Vidanovic), cetvrtak, 26. decembar, 14:00

[Antun Balaz]

Поштоване колегинице и колеге,

Позивам вас на SCL семинар који ће у четвртак, 26. децембра 2013. године у 14:00 у читаоници библиотеке Института за физику одржати Ивана Васић (Institute for Theoretical Physics, University of Frankfurt; SCL, Институт за физику). Наслов семинара је:

Dissipation through localised loss in bosonic systems with long-range interactions

Abstract:

In the recent years, controlled dissipation has proven to be a useful tool for probing of quantum systems in the ultracold setup. In this talk we will consider dynamics of bosons induced by a dissipative local defect. We will address superfluid and supersolid phases that are ground states of an extended Bose-Hubbard Hamiltonian. To this end, we will solve the master equation using the Gutzwiller approximation and find that in the usual homogeneous superfluid phase repulsive interactions lead to enhanced dissipation process. On the other hand, our mean-field approach indicates that the effective loss rates are significantly suppressed deep in the supersolid phase where repulsive nearest neighbour interactions play a dominant role. Our numerical results will be explained by an analytical insight and in particular, in the limit of strong dissipation we will recover the quantum Zeno effect.


Срдачан поздрав,
Антун Балаж

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Antun Balaz
E-mail: antun at ipb.ac.rs
Web: http://www.scl.rs/antun

Phone: +381 11 3713152
Fax: +381 11 3162190

Scientific Computing Laboratory
Institute of Physics Belgrade
Pregrevica 118, 11080 Belgrade, Serbia
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