David File

Questions and Answers (5) View all

• Answer added in Nature of Reality
  29 A wrong theory in physics: theory of Entropy
  By Shufeng Zhang
  David File

  Shufeng Zhang, Please dig up Sakurai QM and review the Density Matrix formulation of QM/Thermo. Integrals are just that...they help show conservat... [more]

  Shufeng Zhang, Please dig up Sakurai QM and review the Density Matrix formulation of QM/Thermo. Integrals are just that...they help show conservation and general stuff like Gauss's law, BUT not-for-an-instant do they address the QM foundations of thermo which enables the prediction of properties of metals at low temperature. I guess I'll have to post a paper showing this?
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• Answer added in Nature of Reality
  27 Entropy : A concept that is not physical quantity
  By Shufeng Zhang
  David File

  Shufeng, The world of thermo defined by the integrals is not necessarily the best place to start when it comes to reality. We know from a simple syst... [more]

  Shufeng, The world of thermo defined by the integrals is not necessarily the best place to start when it comes to reality. We know from a simple system composed of a piston and two volumes that the effects of entropy can be witnessed physically. Also I'd like to recommend Sakurai - Modern Quantum Mechanics. In the course of about 4 pages he links the DM to the standard thermo concepts. Entropy can be easily distilled from the DM...and for everyone else "it's not disorder but increased multiplicity."
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• Question asked in Nature of Reality
  1 And then there was the density matrix
  Shufeng, The world of thermo defined by the integrals is not necessarily the best place to start when it comes to reality. We know from a simple s... [more]
  Shufeng, The world of thermo defined by the integrals is not necessarily the best place to start when it comes to reality. We know from a simple system composed of a piston and two volumes that the effects of entropy can be witnessed physically. Also I'd like to recommend Sakurai - Modern Quantum Mechanics. In the course of about 4 pages he links the DM to the standard thermo concepts. Entropy can be easily distilled from the DM...and for everyone else "it's not disorder but increased multiplicity."
  By David File
  Following