Achieving the Neel state in an optical lattice
Journal Article
·
· Physical Review. A
- Institute for Theoretical Physics, Utrecht University, Leuvenlaan 4, 3584 CE Utrecht (Netherlands)
- Institut fuer Physik, Johannes Gutenberg-Universitaet, 55099 Mainz (Germany)
We theoretically study the possibility of reaching the antiferromagnetic phase of the Hubbard model by starting from a normal gas of trapped fermionic atoms and adiabatically ramping up an optical lattice. Requirements on the initial temperature and the number of atoms are determined for a three-dimensional square lattice by evaluating the Neel state entropy, taking into account fluctuations around the mean-field solution. We find that these fluctuations place important limitations on adiabatically reaching the Neel state.
- OSTI ID:
- 21140544
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 77; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Thermodynamic properties of two-component fermionic atoms trapped in a two-dimensional optical lattice
Anderson lattice description of photoassociation in an optical lattice
Interaction-induced adiabatic cooling for antiferromagnetism in optical lattices
Journal Article
·
Tue Jun 15 00:00:00 EDT 2010
· Physical Review. A
·
OSTI ID:21437944
Anderson lattice description of photoassociation in an optical lattice
Journal Article
·
Tue Feb 14 23:00:00 EST 2006
· Physical Review. A
·
OSTI ID:20974502
Interaction-induced adiabatic cooling for antiferromagnetism in optical lattices
Journal Article
·
Wed Aug 01 00:00:00 EDT 2007
· Physical Review. B, Condensed Matter and Materials Physics
·
OSTI ID:21055117