The Single-Photon Router

Details The Single-Photon Router The Single-Photon Router

2011-03-09

arxiv.org/abs/1103.1782v1

Phys. Rev. Lett. 107, 073601 (2011)

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.107.073601

We have embedded an artificial atom, a superconducting "transmon" qubit, in an open transmission line and investigated the strong scattering of incident microwave photons ($\sim6$ GHz). When an input coherent state, with an average photon number $N\ll1$ is on resonance with the artificial atom, we observe extinction of up to 90% in the forward propagating field. We use two-tone spectroscopy to study scattering from excited states and we observe electromagnetically induced transparency (EIT). We then use EIT to make a single-photon router, where we can control to what output port an incoming signal is delivered. The maximum on-off ratio is around 90% with a rise and fall time on the order of nanoseconds, consistent with theoretical expectations. The router can easily be extended to have multiple output ports and it can be viewed as a rudimentary quantum node, an important step towards building quantum information networks.

Affiliated with

Also associated with

No associations

Rating

The Single-Photon Router 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 The Single-Photon Router, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Single-Photon Router will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-644377