Steady-state many-body entanglement of hot reactive fermions

Abstract

Entanglement is typically created via systematic intervention in the time evolution of an initially unentangled state, which can be achieved by coherent control, carefully tailored non-demolition measurements, or dissipation in the presence of properly engineered reservoirs. In this paper we show that two-component Fermi gases at ~μK temperatures naturally evolve, in the presence of reactive two-body collisions, into states with highly entangled (Dicke-type) spin wavefunctions. The entanglement is a steady-state property that emerges---without any intervention---from uncorrelated initial states, and could be used to improve the accuracy of spectroscopy in experiments with fermionic alkaline earth atoms or fermionic groundstate molecules.

8 pages, 3 figures

References in corpus (14)

• Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
• An Open-System Quantum Simulator with Trapped Ions
• 14-qubit entanglement: creation and coherence
• Time-resolved Observation and Control of Superexchange Interactions with Ultracold Atoms in Optical Lattices
• Strong dissipation inhibits losses and induces correlations in cold molecular gases
• Twin matter waves for interferometry beyond the classical limit
• Controlled exchange interaction between pairs of neutral atoms in an optical lattice
• Experimental Observation of Four-Photon Entangled Dicke State with High Fidelity
• Dissipation induced Tonks-Girardeau gas in an optical lattice
• Optical atomic coherence at the one-second time scale
• Spin squeezing, entanglement and quantum metrology with Bose-Einstein condensates
• Lieb-Liniger model of a dissipation-induced Tonks-Girardeau gas
• Dissipation-induced d-Wave Pairing of Fermionic Atoms in an Optical Lattice
• Many-body protected entanglement generation in interacting spin systems

Cited by in corpus (36)

• Quantum trajectories and open many-body quantum systems
• Ultracold Fermi Gases with Emergent SU(N) Symmetry
• A quantum many-body spin system in an optical lattice clock
• Suppressing the loss of ultracold molecules via the continuous quantum Zeno effect
• Exact Liouvillian Spectrum of a One-Dimensional Dissipative Hubbard Model
• Scalable Dissipative Preparation of Many-Body Entanglement
• Dynamics of Ultracold Quantum Gases in the Dissipative Fermi-Hubbard Model
• Non-equilibrium dynamics of Ising models with decoherence: an exact solution
• Dynamical sign reversal of magnetic correlations in dissipative Hubbard models
• Steady state entanglement of two superconducting qubits engineered by dissipation
• Strong correlations in lossy one-dimensional quantum gases: from the quantum Zeno effect to the generalized Gibbs ensemble
• Probing many-body interactions in an optical lattice clock
• Simulating generic spin-boson models with matrix product states
• Observation of the Sign Reversal of the Magnetic Correlation in a Driven-Dissipative Fermi Gas in Double Wells
• The one-dimensional Bose gas with strong two-body losses: the effect of the harmonic confinement
• A dynamical theory for one-dimensional fermions with strong two-body losses: universal non-Hermitian Zeno physics and spin-charge separation
• Many-Body Open Quantum Systems
• One-dimensional spin-1/2 fermionic gases with two-body losses: weak dissipation and spin conservation
• Dynamical quantum correlations of Ising models on an arbitrary lattice and their resilience to decoherence
• Liouvillian gap and single spin-flip dynamics in the dissipative Fermi-Hubbard model
• Exact eigenstates of multicomponent Hubbard models: SU($N$) magnetic $\eta$ pairing, weak ergodicity breaking, and partial integrability
• A 3-photon process for producing a degenerate gas of metastable alkaline-earth atoms
• Dissipative realization of Kondo models
• Variational approach to the dynamics of dissipative quantum impurity models
• Enhancing Sensitivity of an Atom Interferometer to the Heisenberg Limit using Increased Quantum Noise
• Universality and two-body losses: lessons from the effective non-Hermitian dynamics of two particles
• Reducing Collective Quantum State Rotation Errors with Reversible Dephasing
• Orthogonality catastrophe beyond bosonization from post-selection
• Local Non-Hermitian Hamiltonian Formalism for Dissipative Fermionic Systems and Loss-Induced Population Increase in Fermi Superfluids
• Semiclassical analysis of spin dynamics in the non-Hermitian Hubbard model
• Losses in interacting quantum gases: ultra-violet divergence and its regularization
• An Eigenvalue Problem for a Fermi System and Lie Algebras
• Eightfold way to dark states in SU(3) cold gases with two-body losses
• Metastable ferromagnetic clusters in dissipative many-body systems of polar molecules
• $\mathrm{SU}(3)$ Fermi-Hubbard gas with three-body losses: symmetries and dark states
• Adiabatic Quantum Zeno Dynamics of Bosonic Atom Pairs with Large Inelastic Losses