Quantum effects of nonlinear spin waves
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Ze Cheng
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Article
📅
2010
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Elsevier Science
🌐
English
⚖ 234 KB
We investigate a squeezed thermal spin state of nonlinear spin waves in Heisenberg ferromagnets. In this state, the magnon system possesses a new kind of quasiparticle, the dressed magnon, whose mass is a monotonically decreasing function of temperature. The noise of one spin component in the squeez