Competing order parameters and a tricritical point with a difference
Superconductivity
2017-10-27 v3 Quantum Gases
Abstract
We propose a mean-field, phenomenological Ginzburg-Landau free energy functional with two competing order parameters for a two-component, spin-polarized Fermi gas. This free energy supports a tricritical point which is different from the conventional one and this change offers a correct understanding of the experimental phase diagram of imbalanced Fermi systems (Shin et al, Nature, 2008). The specific heat also happens to be different than in standard theory.
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Cite
@article{arxiv.1011.6521,
title = {Competing order parameters and a tricritical point with a difference},
author = {Arghya Dutta and J. K. Bhattacharjee},
journal= {arXiv preprint arXiv:1011.6521},
year = {2017}
}
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