Peter P Kirschenmann

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Questions related from Peter P Kirschenmann

Can von Neumann entropy be used to characterize spontaneous quantum-physical processes, and if so, how?

in thermodynamics there a nice characterizations of spontaneous processes in terms of thermodynamical entropy or Gibbs free energy is there a similarly nice characterization of spontaneous...

25 June 2021 8,819 0 View

Can the non Neumann entropy be used to characterize atomic and nuclear processes as spontaneous?

In thermodynamics, Gibbs free energy, involving entropy, can characterize spontaneous processes. Can something similar be achieved concerning atomic and nuclear processes by means of the notion of...

11 March 2021 6,129 3 View

Can radioactive decay and also measurements be considered “spontaneous” processes? - And this in the sense of a von Neumann entropy increase?

There are nice thermodynamical definitions of spontaneous processes and reactions: entropy increase, or negative Gibbs free energy for constant pressure and temperature. Are there equally nice and...

10 September 2020 317 3 View