Quantum memory with a single two-level atom in a half cavity

Abstract

We propose a setup for quantum memory based on a single two-level atom in a half cavity with a moving mirror. We show that various temporal shapes of incident photon can be efficiently stored and readout by shaping the time-dependent decay rate $\gamma (t)$ between the atom and the light. This is achieved uniquely by an appropriate motion of the mirror without the need for additional control laser or atomic level. We present an analytical expression for the efficiency of the process and study its dependence on the ratio between the incident light field bandwidth and the atomic decay rate. We discuss possible implementations and experimental issues, particularly for a single atom or ion in a half cavity quantum optical setup as well as a superconducting qubit in the context of circuit QED.

8 pages, 3 figures

References in corpus (11)

• Atomic physics and quantum optics using superconducting circuits
• Strong Coupling of a Spin Ensemble to a Superconducting Resonator
• Towards fault-tolerant quantum computing with trapped ions
• Quantum Memories. A Review based on the European Integrated Project "Qubit Applications (QAP)"
• Generating Single Microwave Photons in a Circuit
• A Single-Atom Quantum Memory
• Implementing the Quantum von Neumann Architecture with Superconducting Circuits
• Strong interaction between light and a single trapped atom without a cavity
• Photon shell game in three-resonator circuit quantum electrodynamics
• Photon correlation vs interference of single-atom fluorescence in a half-cavity
• Interfacing light and single atoms with a lens

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• Quantum optics with giant atoms -- the first five years
• Zero-dynamics principle for perfect quantum memory in linear networks
• Interferometric thermometry of a single sub-Doppler cooled atom
• Quantum trajectories for a system interacting with environment in N-photon state
• From a posteriori to a priori solutions for a two-level system interacting with a single-photon wavepacket
• State-dependent atomic excitation by multi-photon pulses propagating along two spatial modes
• Diffusion Effects in Gradient Echo Memory
• Entanglement in atomic systems interacting with single-photon pulses in free space
• Ultimate quantum limit for amplification: a single atom in front of a mirror
• Non-Markovian steady states of a driven two-level system