On a spectral identity of quantum statistical mechanics (Q967569)
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scientific article; zbMATH DE number 5702866
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On a spectral identity of quantum statistical mechanics |
scientific article; zbMATH DE number 5702866 |
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On a spectral identity of quantum statistical mechanics (English)
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29 April 2010
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In this short note it is shown that a certain identity for the spectral function of one-particle states, known as the sum rule in quantum statistical mechanics, holds true for a rather wide class of non-negative functions on the real line. The respective theorem is proven under weaker assumptions than results obtained in previous work.
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sum rule for quantum statistical mechanics
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spectral identity
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