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Conference on Lasers and Electro-Optics

Experimental Demonstration of Computer Reconfigurable Multimode Entanglement

Jean‐François Morizur, Lachlan Nicholls, Pu Jian, Seiji Armstrong, Kate Wagner, Magnus T. L. Hsu, Warwick P. Bowen, Nicolas Treps, Jiří Janoušek, Hans‐A. Bachor

Published Jan 1, 2010• 0 citations
Publisher

Abstract

Quantum protocols require multiple entangled modes. We demonstrate a set of tools that generate, manipulate and detect multimode entanglement within a single beam of light. This new method is flexible and computer controlled.
DOI
10.1364/qels.2010.qthj3

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Quantum computation and communication protocols require quantum resources which are in the continuous variable regime squeezed and/or quadrature entangled optical modes. To perform more and more complex and robust protocols, one needs sources that can produce in a controlled way highly multimode quantum states of light. One possibility is to mix different single mode quantum resources. Another is to directly use a multimode device, either in the spatial or in the frequency domain. We present here the first experimental demonstration of a device capable of producing simultaneously several squeezed transverse modes of the same frequency and which is potentially scalable. We show that this device, which is an Optical Parametric Oscillator using a self-imaging cavity, produces a multimode quantum resource made of three squeezed transverse modes.