Single photons made-to-measure
| Autor: | Genko S. Vasilev, Daniel Ljunggren, Axel Kuhn |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Photon
Wave packet Population General Physics and Astronomy Physics::Optics FOS: Physical sciences 01 natural sciences law.invention 010309 optics symbols.namesake law 0103 physical sciences Physics::Atomic Physics 010306 general physics Adiabatic process education Physics education.field_of_study Quantum Physics Analytical expressions Laser Computational physics symbols Raman spectroscopy Quantum Physics (quant-ph) Coherence (physics) |
| Popis: | We investigate the efficiency of atom-cavity based photon-generation schemes to deliver single photons of arbitrary temporal shape. Our model applies to Raman transitions in three-level atoms with one branch of the transition driven by a laser pulse, and the other coupled to a cavity mode. For any possible shape of the single-photon wavepacket, we derive an unambiguous analytic expression for the shape of the required driving laser pulse. We furthermore discuss the constraints limiting the maximum probability for emitting any desired photon, and use these to estimate upper bounds for the efficiency of the process. The model is not only valid for Vacuum-Stimulated Raman Adiabatic Passages (V-STIRAP) in the strong-coupling and bad-cavity regime, but it generally allows controlling the coherence and population flow in any Raman process. Comment: 4 pages, 3 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|