Quantum communication without alignment using multiple-qubit single-photon states

Details Quantum communication without alignment using multiple-qubit single-photon states Quantum communication without alignment using multiple-qubit single-photon states

2007-03-07

arxiv.org/abs/quant-ph/0703059v2

Phys. Rev. Lett. 98, 100501 (2007)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevLett.98.100501

We propose a scheme for encoding logical qubits in a subspace protected against collective rotations around the propagation axis using the polarization and transverse spatial degrees of freedom of single photons. This encoding allows for quantum key distribution without the need of a shared reference frame. We present methods to generate entangled states of two logical qubits using present day down-conversion sources and linear optics, and show that the application of these entangled logical states to quantum information schemes allows for alignment-free tests of Bell's inequalities, quantum dense coding and quantum teleportation.

Affiliated with

Also associated with

No associations

Rating

Quantum communication without alignment using multiple-qubit single-photon 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 Quantum communication without alignment using multiple-qubit single-photon states, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum communication without alignment using multiple-qubit single-photon states will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-255486