Infinitesimal Multimode Bargmann-State Representation*
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In the Hilbert space of a light mode (harmonic oscillator), we construct a representation, in which an arbitrary state vector is expanded using Bargmann states ‖α〉 with real parameters α being in an infinitesimal vicinity of zero. The complete Hilbert-space structure is represented in the one- and multimode cases as well, making the representation able to deal with problems of continuous-variable quantum information processing.
Keywordscoherent-state representation continuous-variable quantum information
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- 2.J. Janszky, M. Koniorczyk, and A. Gábris, Phys. Rev. A, 64, 034302 (2001).Google Scholar