Quantum Knowledge in Phase Space

Research output: Contribution to journalArticlepeer-review

Abstract

Quantum physics through the lens of Bayesian statistics considers probability to be a degree of belief and subjective. A Bayesian derivation of the probability density function in phase space is presented. Then, a Kullback–Liebler divergence in phase space is introduced to define interference and entanglement. Comparisons between each of these two quantities and the entropy are made. A brief presentation of entanglement in phase space to the spin degree of freedom and an extension to mixed states completes the work.

Original languageEnglish (US)
Article number1227
JournalEntropy
Volume25
Issue number8
DOIs
StatePublished - Aug 2023

Keywords

  • Bayesian statistics
  • Kullback–Liebler divergence
  • entanglement
  • entropy
  • interference

ASJC Scopus subject areas

  • Information Systems
  • Mathematical Physics
  • Physics and Astronomy (miscellaneous)
  • General Physics and Astronomy
  • Electrical and Electronic Engineering

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