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Article Dans Une Revue Physical Review A Année : 2016

Experimental quantum state engineering with time-separated heraldings from a continuous-wave light source: A temporal-mode analysis

Résumé

Conditional preparation is a well-established technique for quantum state engineering of light. A general trend is to increase the number of heralding detection events in such a realization to reach larger photon-number states or their arbitrary superpositions. In contrast to pulsed implementations, where detections only occur within the pulse window, for continuous-wave light the temporal separation of the conditioning detections is an additional degree of freedom and a critical parameter. Based on a theoretical study by Nielsen and Mølmer [A. E. B. Nielsen and K. Mølmer, Phys. Rev. A 75, 043801 (2007)] and on a continuous-wave two-mode squeezed vacuum from a nondegenerate optical parametric oscillator, we experimentally investigate the generation of two-photon state with tunable delay between the heralding events. The present work illustrates the temporal multimode features in play for conditional state generation based on continuous-wave light sources and quantifies the compromise between preparation rate and fidelity in this scenario.
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hal-03271386 , version 1 (25-06-2021)

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K Huang, H Le Jeannic, V B Verma, M D Shaw, F Marsili, et al.. Experimental quantum state engineering with time-separated heraldings from a continuous-wave light source: A temporal-mode analysis. Physical Review A, 2016, 93, pp.013838. ⟨10.1103/physreva.93.013838⟩. ⟨hal-03271386⟩
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