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EnglishWe propose a quantum memory for a single-photon wave packet in a superposition of two different colors, i.e., two different frequency components, using the electromagnetically induced transparency technique in a double-Lambda system. We examine a specific configuration in which the two frequency components are able to exchange energy through a four-wave mixing process as they propagate, so the state of the incident photon is recovered periodically at certain positions in the medium. We investigate the propagation dynamics as a function of the relative phase between the coupling beams and the input single-photon frequency components. Moreover, by considering time-dependent coupling beams, we numerically simulate the storage and retrieval of a two-frequency-component single-photon qubit.
| Titolo: | Two-color quantum memory in double-Lambda media | |
| Autori: | ||
| Data di pubblicazione: | 2012 | |
| Rivista: | ||
| Parole Chiave: | electromagnetically induced transparency; frequency bin entanglement; single photon; quantum memory | |
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevA.86.053827 | |
| Handle: | http://hdl.handle.net/11384/3357 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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