Spin Caloritronics in Noncondensed Bose Gases

Details Spin Caloritronics in Noncondensed Bose Gases Spin Caloritronics in Noncondensed Bose Gases

2011-10-18

arxiv.org/abs/1110.3940v1

Phys. Rev. Lett. 108, 075301 (2012)

Physics

Condensed Matter

Quantum Gases

Scientific paper

10.1103/PhysRevLett.108.075301

We consider coupled spin and heat transport in a two-component, atomic Bose gas in the noncon- densed state. We find that the transport coefficients show a temperature dependence reflecting the bosonic enhancement of scattering, and discuss experimental signatures of the spin-heat coupling in spin accumulation and total dissipation. Inside the critical region of Bose-Einstein condensation, we find anomalous behavior of the transport coefficients, and in particular, an enhancement for the spin caloritronics figure of merit that determines the thermodynamic efficiency of spin-heat conversion.

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