CNOT and Bell-state analysis in the weak-coupling cavity QED regime.
We propose an interface between the spin of a photon and the spin of an electron confined in a quantum dot embedded in a microcavity operating in the weak-coupling regime. This interface, based on spin selective photon reflection from the cavity, can be used to construct a CNOT gate, a multiphoton entangler and a photonic Bell-state analyzer. Finally, we analyze experimental feasibility, concluding that the schemes can be implemented with current technology.
Bonato
Cristian
C
Huygens Laboratory, Leiden University, P.O. Box 9504, 2300 RA Leiden, The Netherlands.
Haupt
Florian
F
Oemrawsingh
Sumant S R
SS
Gudat
Jan
J
Ding
Dapeng
D
van Exter
Martin P
MP
Bouwmeester
Dirk
D