Is “relative quantum phase” transitive? |
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Authors: | A. J. Leggett |
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Affiliation: | (1) Department of Physics, University of Illinois, 1110 West Green Street, 61801 Urbana, Illinois |
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Abstract: | I discuss the question: Is it possible to prepare, by purely thermodynamic means, an ensemble described by a quantum state having a definite phase relation between two component states which have never been in direct contact? Resolution of this question requires us to take explicit account of the nature of the correlations between the system and its thermal environment. |
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