Coherent Superpositions of Photon Creation Operations and Their Application to Multimode States of Light |
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Authors: | Nicola Biagi Saverio Francesconi Alessandro Zavatta Marco Bellini |
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Institution: | 1.Istituto Nazionale di Ottica (CNR-INO), L.go E. Fermi 6, 50125 Firenze, Italy; (N.B.); (S.F.); (A.Z.);2.LENS and Department of Physics & Astronomy, University of Firenze, 50019 Sesto Fiorentino, Italy |
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Abstract: | We present a concise review of recent experimental results concerning the conditional implementation of coherent superpositions of single-photon additions onto distinct field modes. Such a basic operation is seen to give rise to a wealth of interesting and useful effects, from the generation of a tunable degree of entanglement to the birth of peculiar correlations in the photon numbers and the quadratures of multimode, multiphoton, states of light. The experimental investigation of these properties will have an impact both on fundamental studies concerning, for example, the quantumness and entanglement of macroscopic states, and for possible applications in the realm of quantum-enhanced technologies. |
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Keywords: | quantum optics single-photon addition entanglement |
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