Free evolution of an incoherent mixture of states: A quantum mechanical approach to the van Cittert-Zernike theorem

I. Fabre, F. Navarrete, L. Sarkadi, R. O. Barrachina

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

We study the time evolution of an incoherent mixture of quantum states and demonstrate, in very simple terms, a quantum mechanical equivalent of van Cittert-Zernike theorem, which can be easily explained to Quantum Physics students with a basic knowledge of the density matrix theory. Finally, we exemplify this result by applying it to the quantitative analysis of the coherence of a beam of particles in atomic collisions.

Original languageEnglish
Article number015401
JournalEuropean Journal of Physics
Volume39
Issue number1
DOIs
Publication statusPublished - Jan 1 2018

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atomic collisions
matrix theory
trucks
students
quantitative analysis
theorems
physics

Keywords

  • coherence
  • density matrix
  • van Cittert-Zernike

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Free evolution of an incoherent mixture of states : A quantum mechanical approach to the van Cittert-Zernike theorem. / Fabre, I.; Navarrete, F.; Sarkadi, L.; Barrachina, R. O.

In: European Journal of Physics, Vol. 39, No. 1, 015401, 01.01.2018.

Research output: Contribution to journalArticle

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