Full characterization of a highly multimode entangled state embedded in an optical frequency comb using pulse shaping
| Autor: | R. Medeiros de Araújo, Y. Cai, Claude Fabre, Giulia Ferrini, Nicolas Treps, J. Roslund |
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| Přispěvatelé: | Laboratoire Kastler Brossel (LKB (Jussieu)), Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), European Project: 240486,EC:FP7:ERC,ERC-2009-StG,FRECQUAM(2010), Université Pierre et Marie Curie - Paris 6 (UPMC)-Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Physics
Quantum Physics Multi-mode optical fiber business.industry Local oscillator FOS: Physical sciences Pulse shaping Multipartite entanglement Atomic and Molecular Physics and Optics Optics Homodyne detection [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph] Quantum state Optical parametric oscillator Quantum information Quantum Physics (quant-ph) business |
| Zdroj: | Physical Review A : Atomic, molecular, and optical physics [1990-2015] Physical Review A : Atomic, molecular, and optical physics [1990-2015], 2014, pp.053828. ⟨10.1103/PhysRevA.89.053828⟩ Physical Review A Physical Review A, American Physical Society, 2014, pp.053828. ⟨10.1103/PhysRevA.89.053828⟩ |
| ISSN: | 1050-2947 1094-1622 |
| DOI: | 10.1103/PhysRevA.89.053828⟩ |
| Popis: | International audience; We present a detailed analysis of the multimode quantum state embedded in an optical frequency comb generated by a Synchronously Pumped Optical Parametric Oscillator (SPOPO). The full covariance matrix of the state is obtained with homodyne detection where the local oscillator is spectrally controlled with pulse shaping techniques. The resulting matrix reveals genuine multipartite entanglement. Additionally, the beam is comprised of several independent eigenmodes that correspond to specific pulse shapes. The experimental data is confirmed with numerical simulations. Finally, the potential to create continuous-variable cluster states from the quantum comb is analyzed. Multiple cluster states are shown to be simultaneously embedded in the SPOPO state, and these states can be revealed by a suitable basis change applied to the measured covariance matrix. |
| Databáze: | OpenAIRE |
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