Generating long-lived entangled states with free-space collective spontaneous emission
arXiv:2110.15033 · doi:10.1103/PhysRevA.105.053715
Abstract
Considering the paradigmatic case of a cloud of two-level atoms interacting through common vacuum modes, we show how cooperative spontaneous emission, which is at the origin of superradiance, leads the system to long-lived entangled states at late times. These subradiant modes are characterized by an entanglement between all particles, independently of their geometrical configuration. While there is no threshold on the interaction strength necessary to entangle all particles, stronger interactions lead to longer-lived entanglement.
arXiv comment6 pages and 4 figures + Supplemental Material
References in corpus (43)
- Quantum Cryptography
- Entanglement of Formation of an Arbitrary State of Two Qubits
- Entanglement of a Pair of Quantum Bits
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- QuTiP: An open-source Python framework for the dynamics of open quantum systems
- Decoherence Free Subspaces for Quantum Computation
- Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
- Observation of collective excitation of two individual atoms in the Rydberg blockade regime
- Preparation of Entangled States by Quantum Markov Processes
- Protecting entanglement via the quantum Zeno effect
- Exponential improvement in photon storage fidelities using subradiance and "selective radiance" in atomic arrays
- Subradiance in a Large Cloud of Cold Atoms
- Unification of Dynamical Decoupling and the Quantum Zeno Effect
- The cooperative Lamb shift in an atomic nanolayer
- Superradiance in a Large and Dilute Cloud of Cold Atoms in the Linear-Optics Regime
- Collective atomic scattering and motional effects in a dense coherent medium
- Observation of single-photon superradiance and the cooperative Lamb shift in an extended sample of cold atoms
- Mesoscopic Entanglement Induced by Spontaneous Emission in Solid-State Quantum Optics
- Shifts of a resonance line in a dense atomic sample
- Lieb-Robinson Bound and Locality for General Markovian Quantum Dynamics
- Coherent scattering of near-resonant light by a Dense Microscopic Cold Atomic cloud
- Cooperative Lamb shift in a quantum emitter array
- Light interacting with atomic ensembles: collective, cooperative and mesoscopic effects
- Precision spectroscopy and density-dependent frequency shifts in ultracold Sr
- The Lieb-Robinson light cone for power-law interactions
- Optical resonance shifts in the fluorescence of thermal and cold atomic gases
- The Collective Lamb Shift of a Nanoscale Atomic Vapour Layer within a Sapphire Cavity
- Photon blockade with ground-state neutral atoms
- A superatom picture of collective nonclassical light emission and dipole blockade in atom arrays
- Cooperative Emission of a Coherent Superflash of Light
- Electromagnetically Induced Transparency from a Single Atom in Free Space
- Single-Photon Superradiance in Cold Atoms
- Subradiance and entanglement in atoms with several independent decay channels
- Certifying Separability in Symmetric Mixed States, and Superradiance
- Role of disorder in super- and subradiance of cold atomic clouds
- Subradiance with saturated atoms: population enhancement of the long-lived states
- Propagation of light through small clouds of cold interacting atoms
- Spin squeezing and many-body dipolar dynamics in optical lattice clocks
- Subradiance and superradiance-to-subradiance transition in dilute atomic clouds
- Optical response of atom chains beyond the limit of low light intensity: The validity of the linear classical oscillator model
- Lieb-Robinson bounds for open quantum systems with long-ranged interactions
- Van der Waals dephasing for Dicke subradiance in cold atomic clouds
- Preparing two-atom entangled state in a cavity and probing it via quantum non-demolition measurement
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- Unraveling superradiance: Entanglement and mutual information in collective decay
- Modifying cooperative decay via disorder in atom arrays
- Detecting entanglement from macroscopic measurements of the electric field and its fluctuations
- Cooperative atomic emission from a line of atoms interacting with a resonant plane surface
- Entanglement generation in weakly-driven arrays of multilevel atoms via dipolar interactions
- Selective Preparation of Collective States in Coupled Quantum Emitters Using the SUPER Excitation Scheme