Decoherence-Free Quantum Information Processing with Four-Photon Entangled States

Details Decoherence-Free Quantum Information Processing with Four-Photon Entangled States Decoherence-Free Quantum Information Processing with Four-Photon Entangled States

2003-09-03

arxiv.org/abs/quant-ph/0309041v2

Phys. Rev. Lett. 92 107901 (2004)

Physics

Quantum Physics

4 pages, 4 eps figures, revtex4

Scientific paper

10.1103/PhysRevLett.92.107901

Decoherence-free states protect quantum information from collective noise, the predominant cause of decoherence in current implementations of quantum communication and computation. Here we demonstrate that spontaneous parametric down-conversion can be used to generate four-photon states which enable the encoding of one qubit in a decoherence-free subspace. The immunity against noise is verified by quantum state tomography of the encoded qubit. We show that particular states of the encoded qubit can be distinguished by local measurements on the four photons only.

Affiliated with

Also associated with

No associations

Rating

Decoherence-Free Quantum Information Processing with Four-Photon Entangled States does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Decoherence-Free Quantum Information Processing with Four-Photon Entangled States, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoherence-Free Quantum Information Processing with Four-Photon Entangled States will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-302539