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Bifurcation Phenomenon in a Spin Relaxation

Gen Kimura·Kazuya Yuasa·Kentaro Imafuku
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Abstract

Spin relaxation in a strong-coupling regime (with respect to the spin system) is investigated in detail based on the spin-boson model in a stochastic limit. We find a bifurcation phenomenon in temperature dependence of relaxation constants, which is never observed in the weak-coupling regime. We also discuss inequalities among the relaxation constants in our model and show the well-known relation 2Γ_T >= Γ_L, for example, for a wider parameter region than before.

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Gen Kimura, Kazuya Yuasa, Kentaro Imafuku. 2001-10-26. Bifurcation Phenomenon in a Spin Relaxation. https://doi.org/10.1103/physrevlett.89.140403

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