Time Reversal in Quantum Mechanics and Quantized Field Theory

  • Ion I. GeruEmail author
Part of the Springer Tracts in Modern Physics book series (STMP, volume 281)


In this chapter we discuss the properties of the time-reversal operator (introduced into quantum mechanics by Wigner in 1932) for particles without spin, as well as taking into account the spin. There are given Wigner criteria (a), (b), and (c) concerning the absence or presence of an additional degeneracy of energy levels due to the symmetry with respect to time reversal, both in the case when the spin of particles that form the quantum system is taken into account and in the case it is not. Wigner corepresentations of symmetry groups associated with the presence of time-reversal symmetry are also discussed.

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© Springer Nature Switzerland AG 2018

Authors and Affiliations

  1. 1.Institute of ChemistryAcademy of Sciences of MoldovaChisinauMoldova

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