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Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
Published on: May 27, 2020
Exactly solvable model for isospin S=3/2 fermionic atoms on an optical lattice
1International School for Advanced Studies and INFN, via Beirut 4, 34014 Trieste, Italy.
Physical Review Letters
|April 12, 2006
Abstract:
We propose an exact solution of a model describing a low energy behavior of cold isospin S=3/2 fermionic atoms on a one-dimensional optical lattice. Depending on the band filling the effective field theory has a form of a deformed Gross-Neveu model with either O(7)x Z2 (half filling) or U(1) x O(5) x Z2 symmetry.
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