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Preserving the measure of compatibility between quantum states

Lajos Molnar·Werner Timmermann
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Abstract

In this paper after defining the abstract concept of compatibility-like functions on quantum states, we prove that every bijective transformation on the set of all states which preserves such a function is implemented by an either unitary or antiunitary operator.

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Lajos Molnar, Werner Timmermann. 2002-12-05. Preserving the measure of compatibility between quantum states. https://doi.org/10.1063/1.1545164

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