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arXiv · 1511.02122

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

K. Huang·H. Le Jeannic·V. B. Verma·M. D. Shaw·F. Marsili·S. W. Nam·E Wu·H. Zeng·O. Morin·J. Laurat
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Abstract

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 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 the theoretical study by A.E.B. Nielsen and K. Molmer 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.

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K. Huang, H. Le Jeannic, V. B. Verma, M. D. Shaw, F. Marsili, S. W. Nam, E Wu, H. Zeng, O. Morin, J. Laurat. 2015-11-06. Experimental quantum state engineering with time-separated heraldings from a continuous-wave light source: a temporal-mode analysis. https://doi.org/10.1103/physreva.93.013838

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