Skip to Content.
Sympa Menu

fizinfo - [Fizinfo] BME Elméleti Fizika Tanszék szemináriuma

fizinfo AT


List archive

[Fizinfo] BME Elméleti Fizika Tanszék szemináriuma

Chronological Thread 
  • From: tcsaba <tcsaba AT>
  • To: fizinfo AT
  • Subject: [Fizinfo] BME Elméleti Fizika Tanszék szemináriuma
  • Date: Mon, 27 Feb 2017 11:52:58 +0100

M E G H Í V Ó - I N V I T A T I O N

Seminar Series of the Department of Theoretical Physics at the
Budapest University of Technology and Economics

Gergely Szirmai
(Wigner Research Centre for Physics)

Quantum Magnetism with four component fermions

We investigate magnetic properties of strongly interacting four component spin-3/2 ultracold fermionic atoms in the Mott insulator limit with one particle per site in an optical lattice. In this limit, atomic tunneling is virtual, and only the atomic spins can exchange. We find a competition between symmetry-breaking and liquidlike disordered phases. Particularly interesting are valence bond states with bond centered magnetizations, situated between the ferromagnetic and conventional valence bond phases. In the framework of a mean-field theory, we calculate the phase diagram and identify an experimentally relevant parameter region where a homogeneous SU(4) symmetric Affleck-Kennedy-Lieb-Tasaki–like valence bond state is present.

Időpont: 2017. március 3. péntek, 10:15
Helyszín: BME Fizikai Intézet, Elméleti Fizika Tanszék,
Budafoki út 8. F-épület, III lépcsőház, szemináriumi szoba

Archive powered by MHonArc 2.6.19+.

Top of Page