Linear Optics C-Phase gate made simple

Preprint

30 June 2005

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0506269

Abstract

Linear optics quantum logic gates are the best tool to generate multi-photon entanglement. Simplifying a recent approach [Phys. Rev. A 65, 062324; Phys. Rev. A 66, 024308] we were able to implement the conditional phase gate with only one second order interference at a polarization dependent beam splitter, thereby significantly increasing its stability. The improved quality of the gate is evaluated by analysing its entangling capability and by performing full process tomography. The achieved results ensure that this device is well suited for implementation in various multi photon quantum information protocols.

Keywords

GATE MADE
LINEAR OPTICS
MADE SIMPLE
MULTI PHOTON
OPTICS QUANTUM
PHASE GATE
PHOTON
POLARIZATION
QUANTUM LOGIC
REV

All Related Versions

Version 1, 2005-06-30, ArXiv
Published version: Physical Review Letters, 95 (21), 210505.

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