Abstract
We have investigated analytically the nature of the transition to the Fulde–Ferrel–Larkin–Ovchinnikov (FFLO) superfluid phases in the vicinity of the tricritical point (TCP), where these phases begin to appear. Near the TCP, one can make an expansion of the free energy up to sixth order, both in the order parameter amplitude and wave vector. Restricting ourselves to the order parameter subspace (LO subspace) made of superposition of plane waves of the same wavelength, we obtain first order transitions and a cos( q · r ) form as the stablest FFLO phase. Moreover, going out of the LO subspace, combining analytical and numerical studies, we show that the actual order parameter at the transition is very close to the simple cos( q · r ) form.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
