Perfect excitation of a matter qubit by a single photon in free space

Details Perfect excitation of a matter qubit by a single photon in free space Perfect excitation of a matter qubit by a single photon in free space

2008-08-12

arxiv.org/abs/0808.1666v2

Europhys. Lett. 86, 14007 (2009)

Physics

Quantum Physics

4 pages, 2 figures

Scientific paper

10.1209/0295-5075/86/14007

We propose a scheme for perfect excitation of a single two-level atom by a single photon in free space. The photon state has to match the time reversed photon state originating from spontaneous decay of a two-level system. We discuss its experimental preparation. The state is characterized by a particular asymmetric exponentially-shaped temporal profile. Any deviations from this ideal state limit the maximum absorption. Although perfect excitation requires an infinite amount of time we demonstrate that there is a class of initial one-photon quantum states which can achieve almost perfect absorption even for a finite interaction time. Our results pave the way for realizing perfect coupling between flying and stationary qubits in free space thus opening a possibility for building scalable quantum networks.

Affiliated with

Also associated with

No associations

Rating

Perfect excitation of a matter qubit by a single photon in free space 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 Perfect excitation of a matter qubit by a single photon in free space, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perfect excitation of a matter qubit by a single photon in free space will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-202945