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2016 | 130 | 2 | 625-628
Article title

Phase Transitions of Bosons in Optical Lattices with a Mixture of Single and Pair Hoppings

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Abstracts
EN
We considered Bose condensate in optical lattice with mixture of single and pair hoppings for arbitrary temperatures. In order to calculate free energy of the system and determine phase transition lines between disordered and ordered phases, the Laplace transform method has been applied. We identified several possible scenarios for phase diagrams with phase transitions of the second kind. The results have been obtained from both analytical and numerical methods of calculation. Finally, we obtained thermal insensitivity of the system for big values of reduced pair hopping and (or) reduced chemical potential.
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Contributors
author
  • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O.B. 1410, 50-950 Wrocław, Poland
author
  • Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O.B. 1410, 50-950 Wrocław, Poland
References
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Document Type
Publication order reference
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bwmeta1.element.bwnjournal-article-appv130n228kz
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