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Nonstationary quantum mechanics. II. On the increase of entropy with time

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On the basis of the discussion in our previous work (T1) and the reexamination of the concept of entropy of a pure quantum state it is shown that a natural explanation of the process of entropy increase exists. A new definition of an entropy operator Ŝ is given and it is shown that there is not any increase of entropy when one confines oneself to the usual formalism of quantum mechanics and uses this definition. Some other attempts of proving theH theorem are briefly discussed.

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Todorov, N.S. Nonstationary quantum mechanics. II. On the increase of entropy with time. Int J Theor Phys 19, 725–740 (1980).

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  • Entropy
  • Field Theory
  • Elementary Particle
  • Quantum Field Theory
  • Quantum Mechanic