The Phase Diagrams of F=2 Spinor Bose Condensates
C.V. Ciobanu (1), S.K. Yip (2, 1), T.L. Ho (1) ((1) Ohio State, University, (2) NCTS, Hinschu, Taiwan)
TL;DR
This paper explores the phase diagram of spin-2 spinor Bose condensates, identifying three phases with potential realizations in alkali atoms and drawing parallels to d-wave BCS superfluids.
Contribution
It introduces the complete phase diagram for spin-2 condensates, expanding beyond the spin-1 case, and links their structure to d-wave BCS superfluids.
Findings
Three phases identified for spin-2 condensates
All phases potentially realizable in alkali atoms
Structural correspondence with d-wave BCS superfluids
Abstract
We show that there are three possible phases for a spin-2 spinor Bose condensate, one more compared to the spin-1 case. The order parameters of these phases are the spontaneous magnetization and the singlet pair amplitude. Current estimates of scattering lengths show that all three phases have realizations in optically trapped alkali atoms. There is also a one-to-one correspondence between the structure of a spin-2 spinor Bose condensate and that of a d-wave BCS superfluid.
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