Are almost-symmetries almost linear?

Cuesta, J; Wolf, MM

Cuesta, J (reprint author), Tech Univ Munich, Dept Math, D-85748 Garching, Germany.

JOURNAL OF MATHEMATICAL PHYSICS, 2019; 60 (8):

Abstract

It d-pends. Wigner's symmetry theorem implies that transformations that preserve transition probabilities of pure quantum states are linear maps on th......

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