How to share a continuous-variable quantum secret by optical interferometry

Tomáš Tyc, Barry C. Sanders

Research output: Contribution to journalArticle

82 Citations (Scopus)
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We develop the theory of continuous-variable quantum secret sharing and propose its interferometric realization using passive and active optical elements. In the ideal case of infinite squeezing, a fidelity F of unity can be achieved with respect to reconstructing the quantum secret. We quantify the reduction in fidelity for the (2,3) threshold scheme due to finite squeezing and establish the condition for verifying that genuine quantum secret sharing has occurred.
Original languageEnglish
Article number042310
Pages (from-to)1-5
Number of pages5
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number4
Publication statusPublished - 2002

Bibliographical note

Copyright 2002 by The American Physical Society. Reprinted from Physical review A.

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