Monday, March 14, 2011

The building block of a quantum photon switch

Matthew A. Hall, Joseph B. Altepeter, and Prem Kumar from the Center for Photonic Communication and Computing at Northwestern University in Illinois have constructed a switch which fulfills these requirements and characterize its performance at the single photon level; it exhibits a 200-ps switching window, a 120:1 contrast ratio, 1.5 dB loss, and induces no measurable degradation in the switched photons entangled-state fidelity -less than 0.002

In other words the basic building block for a quantum photon switch
paper is here

Physical review letter is available to buy here

Diagram of the experimental apparatus and summary is here

Ultrafast ten to 200 picosecond switching of photonic entanglement

No comments:

Post a Comment