Towards Einstein-Podolsky-Rosen quantum channel multiplexing - Quantum PhysicsReportar como inadecuado




Towards Einstein-Podolsky-Rosen quantum channel multiplexing - Quantum Physics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: A single broadband squeezed field constitutes a quantum communicationresource that is sufficient for the realization of a large number N of quantumchannels based on distributed Einstein-Podolsky-Rosen EPR entangled states.Each channel can serve as a resource for, e.g. independent quantum keydistribution or teleportation protocols. N-fold channel multiplexing can berealized by accessing 2N squeezed modes at different Fourier frequencies. Wereport on the experimental implementation of the N=1 case through theinterference of two squeezed states, extracted from a single broadband squeezedfield, and demonstrate all techniques required for multiplexing N>1. Quantumchannel frequency multiplexing can be used to optimize the exploitation of abroadband squeezed field in a quantum information task. For instance, it isuseful if the bandwidth of the squeezed field is larger than the bandwidth ofthe homodyne detectors. This is currently a typical situation in manyexperiments with squeezed and two-mode squeezed entangled light.



Autor: Boris Hage, Aiko Samblowski, Roman Schnabel

Fuente: https://arxiv.org/







Documentos relacionados