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BEC-BCS crossover in a p+ip-wave pairing Hamiltonian coupled to bosonic molecular pairs

Dunning, Clare, Isaac, Philip S., Links, Jon, Zhou, Shao-You (2011) BEC-BCS crossover in a p+ip-wave pairing Hamiltonian coupled to bosonic molecular pairs. Nuclear Physics B, 848 (2). pp. 372-397. ISSN 0550-3213. (doi:10.1016/j.nuclphysb.2011.03.001) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided) (KAR id:31251)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1016/j.nuclphysb.2011.03.001

Abstract

We analyse a p+ip-wave pairing BCS Hamiltonian, coupled to a single bosonic degree of freedom representing a molecular condensate, and investigate the nature of the BEC-BCS crossover for this system. For a suitable restriction on the coupling parameters, we show that the model is integrable and we derive the exact solution by the algebraic Bethe ansatz. In this manner we also obtain explicit formulae for correlation functions and compute these for several cases. We find that the crossover between the BEC state and the strong pairing p+ip phase is smooth for this model, with no intermediate quantum phase transition.

Item Type: Article
DOI/Identification number: 10.1016/j.nuclphysb.2011.03.001
Uncontrolled keywords: BCS model; Integrable systems; Bethe ansatz; Correlation functions
Subjects: Q Science > QA Mathematics (inc Computing science)
Divisions: Faculties > Sciences > School of Mathematics Statistics and Actuarial Science
Depositing User: Clare Dunning
Date Deposited: 04 Oct 2012 10:19 UTC
Last Modified: 06 May 2020 03:07 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/31251 (The current URI for this page, for reference purposes)
Dunning, Clare: https://orcid.org/0000-0003-0535-9891
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