Normal-Superfluid Phase Separation in Spin-Half Bosons at Finite Temperature.,Physical Review Letters

当前位置： X-MOL 学术 › Phys. Rev. Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Normal-Superfluid Phase Separation in Spin-Half Bosons at Finite Temperature.
Physical Review Letters ( IF 8.1 ) Pub Date : 2020-07-31 , DOI: 10.1103/physrevlett.125.055301
Li He ₁ , Peipei Gao _{2,

3} , Zeng-Qiang Yu _{2,

3}

Affiliation

For pseudospin-half bosons with interspin attraction and intraspin repulsion, the normal phase and Bose condensed phase can coexist at finite temperature. The homogeneous system is unstable against the spinodal decomposition within a medium density interval, and, consequently, a normal-superfluid phase separation takes place. The isothermal equation of state shows a characteristic plateau in the

P - V

(pressure-volume) diagram, which is reminiscent of a classical gas-liquid transition, although, unlike the latter, the coexistence lines never terminate at a critical point as temperature increases. In a harmonic trap, the phase separation can be revealed by the density profile of the atomic cloud, which exhibits a sudden jump across the phase boundary.

中文翻译：