Probing quantum communication rules by addition and subtraction of single photons to/from a light field

V. Parigi, A. Zavatta, Myung Kim, M. Bellini

Research output: Contribution to journalArticle

288 Citations (Scopus)

Abstract

The possibility of arbitrarily "adding" and "subtracting" single photons to and from a light field may give access to a complete engineering of quantum states and to fundamental quantum phenomena. We experimentally implemented simple alternated sequences of photon creation and annihilation on a thermal field and used quantum tomography to verify the peculiar character of the resulting light states. In particular, as the final states depend on the order in which the two actions are performed, we directly observed the noncommutativity of the creation and annihilation operators, one of the cardinal concepts of quantum mechanics, at the basis of the quantum behavior of light. These results represent a step toward the full quantum control of a field and may provide new resources for quantum information protocols
Original languageEnglish
Pages (from-to)1890-1893
Number of pages4
JournalScience
Volume317
Issue number5846
DOIs
Publication statusPublished - 28 Sep 2007

ASJC Scopus subject areas

  • General

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