Quantum memory in an optical lattice

Abstract

Arrays of atoms trapped in optical lattices are appealing as storage media for photons, since motional dephasing of the atoms is eliminated. The regular lattice is also associated with band structure in the dispersion experienced by incident photons. Here we study the influence of this band structure on the efficiency of quantum memories based on electromagnetically induced transparency (EIT) and on Raman absorption. We observe a number of interesting effects, such as both reduced and superluminal group velocities, enhanced atom-photon coupling and anomalous transmission. These effects are ultimately deleterious to the memory efficiency, but they are easily avoided by tuning the optical fields away from the band edges.

6 pages, 5 figures, accepted for publication in PRA

References in corpus (19)

• Cold bosonic atoms in optical lattices
• Dark-State Polaritons in Electromagnetically Induced Transparency
• Quantum memory for photons: I. Dark state polaritons
• Mapping photonic entanglement into and out of a quantum memory
• Towards high-speed optical quantum memories
• Quantum Memory for Light
• Photon storage in Lambda-type optically dense atomic media. II. Free-space model
• Mapping broadband single-photon wavepackets into an atomic memory
• Modematching an optical quantum memory
• Electromagnetically Induced Transparency and Light Storage in an Atomic Mott Insulator
• Three-dimensional theory for interaction between atomic ensembles and free-space light
• Optimal light storage in atomic vapor
• Optimal light storage with full pulse shape control
• Experimental observation of magic-wavelength behavior in optical lattice-trapped ${}^{87}$Rb
• Efficient spatially-resolved multimode quantum memory
• Light storage in a magnetically-dressed optical lattice
• Tunable photonic band gaps with coherently driven atoms in optical lattices
• Pairwise entanglement and readout of atomic-ensemble and optical wave-packet modes in traveling-wave Raman interactions
• Ultrahigh reflection from a medium with ultraslow group velocity

Cited by in corpus (5)

• An atomic interface between microwave and optical photons
• Quantum storage based on the control field angular scanning
• Massively-multiplexed generation of Bell-type entanglement using a quantum memory
• Enhancing Light-Atom Interactions via Atomic Bunching
• Quantum engineering for compactly localized states in disordered Lieb lattices