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Subject: ELFT HÍRADÓ
[Fizinfo] reminder: Wigner SzFI Strongly Correlated Systems seminar, 29 May - Catalin Halati (Bonn)
- From: Szilard SZALAY <szalay AT phy.bme.hu>
- To: fizinfo AT lists.kfki.hu
- Subject: [Fizinfo] reminder: Wigner SzFI Strongly Correlated Systems seminar, 29 May - Catalin Halati (Bonn)
- Date: Mon, 28 May 2018 14:11:20 +0200
Seminar of the
Wigner SzFI Strongly Correlated Systems "Lendület" Research Group
Cavity-induced artificial gauge field in a Bose-Hubbard ladder
Helmholtz-Institut für Strahlen- und Kernphysik, Universität Bonn
(host: Örs Legeza)
Tuesday, 29 May 2018 14:00, KFKI Campus, Bldg. 1, 2nd floor, Conference Room
We consider theoretically ultracold interacting bosonic atoms confined to quasi-one-dimensional ladder structures formed by optical lattices and coupled to the field of an optical cavity. The atoms can collect a spatial phase imprint during a cavity-assisted tunneling along a rung via Raman transitions employing a cavity mode and a transverse running wave pump beam. By adiabatic elimination of the cavity field we obtain an effective Hamiltonian for the bosonic atoms, with a self-consistency condition. Using the numerical density matrix renormalization group method, we obtain a rich steady state diagram of self-organized steady states. Transitions between superfluid to Mott-insulating states occur, on top of which we can have Meissner, vortex liquid, and vortex lattice phases. Also a state that explicitly breaks the symmetry between the two legs of the ladder, namely the biased-ladder phase is dynamically stabilized.
C.-M. Halati, A. Sheikhan, and C. Kollath, Phys. Rev. A 96, 063621.
Everyone is welcome to attend.
-- Szilárd Szalay. --
- [Fizinfo] reminder: Wigner SzFI Strongly Correlated Systems seminar, 29 May - Catalin Halati (Bonn), Szilard SZALAY, 05/28/2018
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