Showing papers by "Pu Jian published in 2011"
06 Jun 2011
TL;DR: In this article, the authors present a Unitary Programmable Mode Converter (UPMC), a device able to transfer squeezing efficiently from a spatial mode to another spatial mode.
Abstract: We present and characterize a Unitary Programmable Mode Converter, a device able to transfer squeezing efficiently from a spatial mode to another.
7 citations
22 May 2011
TL;DR: The properties of continuous variable (CV) non-classical states of light such as squeezed states or multimode entangled states contradict classical postulates like locality and separability as mentioned in this paper.
Abstract: The properties of continuous variable (CV) non-classical states of light such as squeezed states or multimode entangled states contradict classical postulates like locality and separability[1]. These quantum states are valuable resources for fundamental tests of quantum mechanics and for many protocols in communications[2], sensing[3] and quantum information processing[4]. In many practical applications it is important to match the spatial shape, or mode, of the light at every stage of the optical setup: state preparation, manipulation, and detection.
1 citations
22 May 2011
TL;DR: In this article, the authors proposed the Synchronously Pumped Optical Parametric Oscillators (SPOPO) as a promising device for the generation of multimode nonclassical frequency combs.
Abstract: Multimode nonclassical states of light are an essential resource in quantum computation with continuous variables [1]. They can be generated either by mixing different squeezed light sources using linear optical operations [2], or directly in a multimode optical device [3, 4]. Synchronously Pumped Optical Parametric Oscillators (SPOPO) — which correspond to an OPO pumped by a train of ultrashort pulses that are synchronized with the cavity round-trip time — have been theoretically shown to be promising devices for the generation of multimode nonclassical frequency combs, since a SPOPO is a sole optical cavity acting as an assembly of independent squeezers in a particular basis called the supermodes basis [5]. The supermodes are optical frequency combs with specific spectrum and phase profiles that are determined by the length of the intracavity nonlinear crystal and the pulse shape of the pump.
1 citations