Sound wave amplification in superconduct
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P. Otschik; H. Eschrig; F. Lange
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Article
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1981
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Springer US
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English
โ 436 KB
The possibility of generating an occupation inversion n(E) > 89 in a nonequilibrium superconducting state by tunnel injection is discussed. By investigating the combined densities of states of the processes involved, a condition on the occupation function n(E) for sound wave amplification is derived