Coherent Atom Interactions Mediated by Dark-State Polaritons

Abstract

We suggest a technique to induce effective, controllable interactions between atoms that is based on Raman scattering into an optical mode propagating with a slow group velocity. The resulting excitation corresponds to the creation of spin-flipped atomic pairs in a way that is analogous to correlated photon emission in optical parametric amplification. The technique can be used for fast generation of entangled atomic ensembles, spin squeezing and applications in quantum information processing.

4 pages, 3 figures, minor typos corrected

References in corpus (5)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Long-distance quantum communication with atomic ensembles and linear optics
• Storage of light in atomic vapor
• Quantum memory for photons: I. Dark state polaritons
• Superchemistry: dynamics of coupled atomic and molecular Bose-Einstein condensates

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• Entangling atoms in bad cavities
• Spin Squeezing via One-Axis Twisting with Coherent Light
• Quantum Many-Body Dynamics of Coupled Double-Well Superlattices
• Resonance beating of light stored using atomic spinor polaritons
• Multimode entanglement of light and atomic ensembles via off-resonant coherent forward scattering
• Quantum limited measurements of atomic scattering properties
• Unitary Cavity Spin Squeezing by Quantum Erasure
• Integrable and chaotic dynamics of spins coupled to an optical cavity
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• Extreme Spin Squeezing from Deep Reinforcement Learning
• Classification of Spin-Nematic Squeezing in Spin-1 Collective Atomic Systems
• Manipulation of Non-classical Atomic Spin States
• Precision Measurements Using Squeezed Spin States via Two-axis Counter-twisting Interactions
• Quantum Memory Process with a Four-Level Atomic Ensemble
• Spin squeezing via one- and two-axis twisting induced by a single off-resonance stimulated Raman scattering in a cavity
• Quantum Memory Based on $\Lambda$-Atoms Ensemble with Two-Photon Resonance EIT
• Collapse of dark states in Tavis-Cummings model
• Simulating and investigating various dynamic aspects of the ${\mathrm{H}}_2\mathrm{O}$-related hydrogen bond model
• Description of the non-Markovian dynamics of atoms in terms of a pure state
• Spin squeezing an ultracold molecule
• Studying the effect of phonon coherence and inflow on hydrogen bond formation in the $[({\mathrm{H}}_2\mathrm{O}{)}_2{]}^m$ cluster
• Simulating and comparing the quantum and classical mechanical motion of two hydrogen atoms