Fidelity preserving maps on density operators

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We prove that any bijective transformation on the set of all density operators on a Hilbert space preserving fidelity is implemented by either a unitary or an antiunitary operator on the underlying Hilbert space.

Original languageEnglish
Pages (from-to)299-303
Number of pages5
JournalReports on Mathematical Physics
Volume48
Issue number3
DOIs
Publication statusPublished - Dec 2001

Fingerprint

Density Operator
Hilbert space
Fidelity
preserving
operators
Bijective
Operator

Keywords

  • Density operators
  • Fidelity
  • Transition probability
  • Wigner's theorem

ASJC Scopus subject areas

  • Mathematical Physics
  • Statistical and Nonlinear Physics

Cite this

Fidelity preserving maps on density operators. / Molnár, L.

In: Reports on Mathematical Physics, Vol. 48, No. 3, 12.2001, p. 299-303.

Research output: Contribution to journalArticle

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