Experimental realization of programmable quantum gate

Details Experimental realization of programmable quantum gate Experimental realization of programmable quantum gate

2008-12-08

arxiv.org/abs/0812.1457v1

Phys. Rev. A 78, 062311 (2008)

Physics

Quantum Physics

5 pages, 5 figures, RevTeX4

Scientific paper

10.1103/PhysRevA.78.062311

We experimentally demonstrate a programmable single-qubit quantum gate. This device applies a unitary phase shift operation to a data qubit with the value of the phase shift being fully determined by the state of a program qubit. Our linear optical implementation is based on the encoding of qubits into polarization states of single photons, two-photon interference on a polarizing beam splitter, and measurement on the output program qubit. We fully characterize the programmable gate by quantum process tomography. The achieved average quantum process fidelity exceeding 97% illustrates very good performance of the gate for all values of the encoded phase shift. We also show that by using a different set of program states the device can operate as a programmable partial polarization filter.

Affiliated with

Also associated with

No associations

Rating

Experimental realization of programmable quantum gate 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 Experimental realization of programmable quantum gate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experimental realization of programmable quantum gate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-318852