High-speed spatially multimode atomic memory
TLDR
In this paper, a quantum memory process based on the conversion of a signal pulse into a long-lived spin coherence via light matter interaction in an on-resonant -type system is studied.Abstract:
We study the coherent storage and retrieval of a very short multimode light pulse in an atomic ensemble. We consider a quantum memory process based on the conversion of a signal pulse into a long-lived spin coherence via light matter interaction in an on-resonant � -type system. In order to study the writing and reading processes we analytically solve the partial differential equations describing the evolution of the field and of the atomic coherence in time as well as in space. We show how to optimize the process for writing as well as for reading. If the medium length is fixed, for each length, there is an optimal value of the pulse duration. We discuss the information capacity of this memory scheme and we estimate the number of transverse modes that can be stored as a quantum hologram.read more
Citations
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Journal ArticleDOI
Optical memory bandwidth and multiplexing capacity in the erbium telecommunication window
Julian Dajczgewand,Rose Ahlefeldt,Thomas Böttger,Anne Louchet-Chauvet,Jean-Louis Le Gouët,Thierry Chanelière +5 more
TL;DR: In this paper, the bandwidth and multiplexing capacity of an erbium-doped optical memory for quantum storage purposes were investigated and it was shown that the memory performance is limited by instantaneous spectral diffusion and this effect can be minimized to achieve optimal performance.
Journal ArticleDOI
Quantum magneto-electrodynamics of electrons embedded in a photon cavity
TL;DR: In this article, the authors investigated the coupling between a quantized electromagnetic field in a cavity resonator and a Coulomb interacting electronic system in a nanostructure in an external magnetic field.
Journal ArticleDOI
Optical memory bandwidth and multiplexing capacity in the erbium telecommunication window
Julian Dajczgewand,Rose Ahlefeldt,Thomas Böttger,Anne Louchet-Chauvet,Jean-Louis Le Gouët,Thierry Chanelière +5 more
TL;DR: It is shown that the memory performance is limited by instantaneous spectral diffusion and it is described how this effect can be minimised to achieve optimal performance.
Journal ArticleDOI
Nonperturbative Approach to Circuit Quantum Electrodynamics
TL;DR: The results demonstrate that including the diamagnetic term in the photon-electron interaction Hamiltonian drastically improves numerical convergence, and convergence with respect to the number of photon states in the joint photon-Electron Fock space basis is fast.
Journal ArticleDOI
Spin-Wave Multiplexed Atom-Cavity Electrodynamics
Kevin C. Cox,David H. Meyer,Zachary A. Castillo,Zachary A. Castillo,Fredrik K. Fatemi,Paul D. Kunz +5 more
TL;DR: It is highlighted that the current experimental configuration allows rapid, interchangeable cavity coupling to 4 profiles with an overlap parameter of less than 10%, enough to demonstrate, for example, a quantum repeater network simulation in the cavity.
References
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Journal ArticleDOI
Dynamical oscillator-cavity model for quantum memories
Qiongyi He,Margaret D. Reid,Margaret D. Reid,Elisabeth Giacobino,Jean Cviklinski,Peter D. Drummond +5 more
TL;DR: In this article, a dynamical approach to quantum memories using an oscillator-cavity model is proposed, which overcomes the known difficulties of achieving high quantum input-output fidelity with long storage times compared to the input signal duration.