Storage and retrieval of time-entangled soliton trains in a three-level atom system coupled to an optical cavity

Abstract

The storage and subsequent retrieval of coherent pulse trains in the quantum memory (i.e. cavity-dark state) of three-level $\Lambda$ atoms, are considered for an optical medium in which adiabatic photon transfer occurs under the condition of quantum impedance matching. The underlying mechanism is based on intracavity Electromagnetically-Induced Transparency, by which properties of a cavity filled with three-level $\Lambda$-type atoms are manipulated by an external control field. Under the impedance matching condition, we derive analytic expressions that suggest a complete transfer of an input field into the cavity-dark state by varying the mixing angle in a specific way, and its subsequent retrieval at a desired time. We illustrate the scheme by demonstrating the complete transfer and retrieval of a Gaussian, a single hyperbolic-secant and a periodic train of time-entangled hyperbolic-secant input photon pulses in the atom-cavity system. For the time-entangled hyperbolic-secant input field, a total controllability of the periodic evolution of the dark state population is made possible by changing the Rabi frequency of the classical driving field, thus allowing to alternately store and retrieve high-intensity photons from the optically dense Electromagnetically-Induced transparent medium. Such multiplexed photon states, which are expected to allow sharing quantum information among many users, are currently of very high demand for applications in long-distance and multiplexed quantum communication.

22 pages, 8 figures, accepted in Optics Communications

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• Elliptic solitons in optical fiber media
• Fundamental modes of a trapped probe photon in optical fibers conveying periodic pulse trains
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Cited by in corpus (5)

• Continuous-wave stability and multi-pulse structures in a universal Complex Ginzburg-Landau model for passively mode-locked lasers with saturable absorber
• Multiple single-photon generations in three-level atoms coupled to cavity with non-Markovian effects
• Using dark solitons from a Bose-Einstein condensate necklace to imprint soliton states in the spectral memory of a free boson gas
• Soliton-mode proliferation induced by cross-phase modulation of harmonic waves by a dark-soliton crystal in optical media
• Deterministic photon storage and readout in a semimagnetic quantum-dot--cavity system doped with a single Mn ion