Long-lived entanglement generation of nuclear spins using coherent light

Abstract

Nuclear spins of noble-gas atoms are exceptionally isolated from the environment and can maintain their quantum properties for hours at room temperature. Here we develop a mechanism for entangling two such distant macroscopic ensembles by using coherent light input. The interaction between the light and the noble-gas spins in each ensemble is mediated by spin-exchange collisions with alkali-metal spins, which are only virtually excited. The relevant conditions for experimental realizations with ^{3}\text{He} or ^{129}\text{Xe} are outlined.

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Cited by in corpus (27)

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• Strong coupling of alkali spins to noble-gas spins with hour-long coherence time
• Hot atomic vapors for nonlinear and quantum optics
• Quantum interface for noble-gas spins based on spin-exchange collisions
• Quantum Dynamics of Collective Spin States in a Thermal Gas
• Nuclear spin squeezing in Helium-3 by continuous quantum nondemolition measurement
• Coupling light to a nuclear spin gas with a two-photon linewidth of five millihertz
• Optical quantum memory for noble-gas spins based on spin-exchange collisions
• Spin-squeezed states for metrology
• Spin-exchange collisions in hot vapors create and sustain bipartite entanglement
• Inter-species spin-noise correlations in hot atomic vapors
• Continuous field tracking with machine learning and steady state spin squeezing
• Critical dynamics and phase transition of a strongly interacting warm spin-gas
• Liouvillian and Hamiltonian exceptional points of atomic vapors: The spectral signatures of quantum jumps
• Zero-field spin noise spectrum of an alkali vapor with strong spin-exchange coupling
• Suppressing the Decoherence of Alkali-Metal Spins at Low Magnetic Fields
• Enhanced coupling of electron and nuclear spins by quantum tunneling resonances
• Magnetic-field-independent spin-exchange relaxation-free magnetometer
• Coherence-preserving cooling of nuclear spin qubits in a weak magnetic field
• Optimized experimental optical tomography of quantum states of room-temperature alkali-metal vapor
• Generation of minimum energy entangled states
• Diffusion and entanglement in open quantum systems
• Optical protection of alkali-metal atoms from spin relaxation
• Transition metal ion ensembles in crystals as solid-state coherent spin-photon interfaces: The case of nickel in magnesium oxide
• Optimal Strategies for Optical Quantum Memories Using Long-Lived Noble-Gas Spins
• Nuclear Spin Squeezing Based on Spin-Exchange Collisions
• Nuclear spin squeezing by continuous quantum non-demolition measurement: a theoretical study