Detecting Hidden Differences via Permutation Symmetries

R. B. A. Adamson, P. S. Turner, M. W. Mitchell, A. M. Steinberg

Research output: Contribution to journalArticle (Academic Journal)peer-review

17 Citations (Scopus)


We present a method for describing and characterizing the state of N particles that may be distinguishable in principle but not in practice due to experimental limitations. The technique relies upon a careful treatment of the exchange symmetry of the state among experimentally accessible and experimentally inaccessible degrees of freedom. The approach we present allows a new formalisation of the notion of indistinguishability and can be implemented easily using currently available experimental techniques. Our work is of direct relevance to current experiments in quantum optics, for which we provide a specific implementation.
Original languageEnglish
JournalPhysical Review A: Atomic, Molecular and Optical Physics
Publication statusPublished - 2008

Bibliographical note

8 pages, 1 figure


  • quant-ph

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