Document Type
Article
Publication Date
September 2013
Publication Title
Physical Review B
Volume
88
Issue Number
12
First Page
125127-1
Last Page
125127-10
DOI
10.1103/PhysRevB.88.125127
Keywords
Finite, Temperature, Strongly, Correlated, Fermions
Disciplines
Physical Sciences and Mathematics | Physics
Abstract
We study finite-temperature properties of strongly interacting fermions in the honeycomb lattice using numerical linked-cluster expansions and determinantal quantum Monte Carlo simulations. We analyze a number of thermodynamic quantities, including the entropy, the specific heat, uniform and staggered spin susceptibilities, short-range spin correlations, and the double occupancy at and away from half filling. We examine the viability of adiabatic cooling by increasing the interaction strength for homogeneous as well as for trapped systems. For the homogeneous case, this process is found to be more efficient at finite doping than at half filling. That, in turn, leads to an efficient adiabatic cooling in the presence of a trap, which, starting with even relatively high entropies, can drive the system to have a Mott insulating phase with substantial antiferromagnetic correlations.
Recommended Citation
Baoming Tang, Thereza Paiva, Ehsan Khatami, and Marchos Rigol. "Finite-temperature properties of strongly correlated fermions in the honeycomb lattice" Physical Review B (2013): 125127-1-125127-10. https://doi.org/10.1103/PhysRevB.88.125127
Comments
© 2013 American Physical Society DOI:10.1103/PhysRevB.88.125127 Dr. Khatami was affiliated with the University of California, Santa Cruz at the time of publication.
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