Optical quantum memory for noble-gas spins based on spin-exchange collisions
Or Katz, Roy Shaham, Eran Reches, Alexey V. Gorshkov, Ofer Firstenberg
Abstract
Optical quantum memories, which store and preserve the quantum state of photons, rely on a coherent mapping of the photonic state onto matter states that are optically accessible. Here we outline and characterize schemes to map the state of photons onto long-lived but optically inaccessible collective states of noble-gas spins. The mapping employs coherent spin-exchange interaction arising from random collisions with alkali vapor. We propose efficient storage strategies in two operating regimes and analyze their performance for several proposed experimental configurations.
Topics & Concepts
SpinsNoble gasPhysicsQuantumQuantum memorySpin (aerodynamics)Condensed matter physicsMaterials scienceAtomic physicsQuantum mechanicsQuantum computerQuantum networkThermodynamicsQuantum optics and atomic interactionsAtomic and Subatomic Physics ResearchCold Atom Physics and Bose-Einstein Condensates