On The Information-Theoretical Entropy for Some Quantum Oscillators

Dušan Popov 1 , Nicolina Pop 1  and Simona Șimon 2
  • 1 “Politehnica” University of Timişoara, Department of Physical Foundation of Engineering, Vasile Pârvan Blvd., 300223 Timisoara, Romania
  • 2 “Politehnica” University of Timişoara, Faculty of Communication Sciences, 2A Traian Lalescu St, 300223 Timişoara, Romania

Abstract

The information-theoretical entropy, also called the “classical” entropy, was introduced by Wehrl in terms of the Glauber coherent states (CSs) | z > , i.e. the CSs corresponding to the one-dimensional harmonic oscillator (HO-1D). In the present paper, we have focused our attention on the examination of the information-theoretical entropy, i.e. the Wehrl entropy, for both the pure and the mixed (thermal) states of some quantum oscillators.

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