| Autor: |
R B, Li, C J, Zhu, L, Deng, E W, Hagley |
| Rok vydání: |
2016 |
| Předmět: |
|
| Zdroj: |
Physical review. A, Atomic, molecular, and optical physics. 92(4) |
| ISSN: |
1050-2947 |
| Popis: |
We demonstrate an observation of zero to π continuously controllable cross-phase-modulation based on N-type electromagnetically induced transparency scheme in a room-temperature 87Rb vapor. We theoretically and experimentally show that the signal field acquires a π phase shift compared with the reference light in the presence of the phase-control field. Using the method of the optical Mach-Zehnder interferometer, we demonstrate that a zero to π continuously controllable phase gate can be built by modulating the phase-control field. In addition, our theoretical calculation agrees well with the experimental observation, and the results presented in this work hold the potential applications for the orthogonal polarization/vector gate in the quantum information processing. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
