Antisymmetric multi-partite quantum states and their applications

I. Jex, G. Alber, S.M. Barnett, A. Delgado

Research output: Contribution to journalArticle

12 Citations (Scopus)
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Abstract

Entanglement is a powerful resource for processing quantum information. In this context pure, maximally entangled states have received considerable attention. In the case of bipartite qubit-systems the four orthonormal Bell-states are of this type. One of these Bell states, the singlet Bell-state, has the additional property of being antisymmetric with respect to particle exchange. In this contribution we discuss possible generalizations of this antisymmetric Bell-state to cases with more than two particles and with single-particle Hilbert spaces involving more than two dimensions. We review basic properties of these totally antisymmetric states. Among possible applications of this class of states we analyze a new quantum key sharing protocol and methods for comparing quantum states.
Original languageEnglish
Pages (from-to)172-178
Number of pages7
JournalProgress of Physics
Volume51
Issue number2
DOIs
Publication statusPublished - 26 Feb 2003

Keywords

  • entanglement
  • quantum information
  • Bell-states
  • qubit
  • bipartite qubit systems
  • particle exchange
  • Hilbert spaces
  • quantum

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