Gehér, György (2014) An elementary proof for the nonbijective version of Wigner's theorem. PHYSICS LETTERS A, 378 (3031). pp. 20542057. ISSN 03759601

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Abstract
The nonbijective version of Wigner's theorem states that a map which is defined on the set of selfadjoint, rankone projections (or pure states) of a complex Hilbert space and which preserves the transition probability between any two elements, is induced by a linear or antilinear isometry. We present a completely new, elementary and very short proof of this famous theorem which is very important in quantum mechanics. We do not assume bijectivity of the mapping or separability of the underlying space like in many other proofs.
Item Type:  Article 

Subjects:  Q Science / természettudomány > QC Physics / fizika > QC05 Physical nature of matter / részecskefizika 
SWORD Depositor:  MTMT SWORD 
Depositing User:  MTMT SWORD 
Date Deposited:  27 Jun 2014 06:31 
Last Modified:  18 May 2016 11:00 
URI:  http://real.mtak.hu/id/eprint/13361 
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