Entanglement between two spatially separated ultracold interacting Fermi gases
arXiv:1810.07827 · doi:10.1103/PhysRevA.99.063601
Abstract
Multiparticle entangled states, essential ingredients for modern quantum technologies, are routinely generated in experiments of atomic Bose-Einstein condensates (BECs). However, the entanglement in ultracold interacting Fermi gases has not been yet exploited. In this work, by using an ansatz of composite bosons, we show that many-particle entanglement between two fermionic ensembles localized in spatially separated modes can be generated by splitting an ultracold interacting Fermi gas in the (molecular) BEC regime. This entanglement relies on the fundamental fermion exchange symmetry of molecular constituents and might be used for implementing Bell test of quantum nonlocality in oncoming experiments.
arXiv comment9 pages, 5 figures
References in corpus (51)
- Theory of Bose-Einstein condensation in trapped gases
- Feshbach Resonances in Ultracold Gases
- Theory of ultracold Fermi gases
- Steering, Entanglement, Nonlocality, and the EPR Paradox
- Condensation of Pairs of Fermionic Atoms Near a Feshbach Resonance
- Nonlinear atom interferometer surpasses classical precision limit
- Atom chip based generation of entanglement for quantum metrology
- Experimental Study of the BEC-BCS Crossover Region in Lithium 6
- Squeezing and entanglement in a Bose-Einstein condensate
- BCS-BEC Crossover: From High Temperature Superconductors to Ultracold Superfluids
- Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
- Weakly bound dimers of fermionic atoms
- Using photoemission spectroscopy to probe a strongly interacting Fermi gas
- Deterministic Preparation of a Tunable Few-Fermion System
- Twin matter waves for interferometry beyond the classical limit
- Fisher Information and entanglement of non-Gaussian spin states
- Molecular Probe of Pairing in the BEC-BCS Crossover
- Secure continuous variable quantum teleportation and Einstein-Podolsky-Rosen steering
- Observation of pseudogap behavior in a strongly interacting Fermi gas
- Two Fermions in a double well: Exploring a fundamental building block of the Hubbard model
- Verification of universal relations in a strongly interacting Fermi gas
- Spatial entanglement patterns and Einstein-Podolsky-Rosen steering in a Bose-Einstein condensate
- Detecting multiparticle entanglement of Dicke states
- Deterministic entanglement generation from driving through quantum phase transitions
- Spatially distributed multipartite entanglement enables Einstein-Podolsky-Rosen steering of atomic clouds
- Bell Correlations in a Bose-Einstein Condensate
- Entanglement with Negative Wigner Function of Three Thousand Atoms Heralded by One Photon
- Detecting non-locality in multipartite quantum systems with two-body correlation functions
- Universal behavior of pair correlations in a strongly interacting Fermi gas
- Entanglement between two spatially separated atomic modes
- Pairing in few-fermion systems with attractive interactions
- Extracting entanglement from identical particles
- Momentum distribution and condensate fraction of a Fermi gas in the BCS-BEC crossover
- Satisfying the Einstein-Podolsky-Rosen criterion with massive particles
- Quantum entanglement as an interpretation of bosonic character in composite two-particle systems
- New criteria for bosonic behavior of excitons
- Two-component few-fermion mixtures in a one-dimensional trap: numerical versus analytical approach
- S-wave quantum entanglement in a harmonic trap
- Entanglement entropies in the ground states of helium-like atoms
- Bosonic behavior of entangled fermions
- Observation of interference between two molecular Bose-Einstein condensates
- Criteria for two distinguishable fermions to behave like a boson
- Collective interference of composite two-fermion bosons
- Coboson many-body formalism for cold atom dimers with attraction between different fermion species only
- How bosonic is a pair of fermions?
- Bosonic characters of atomic Cooper pairs across resonance
- Composite-boson approach to molecular Bose-Einstein condensates in mixtures of ultracold Fermi gases
- Entanglement generation through particle detection in systems of identical fermions
- Correlated Pair Approach to Composite Boson Scattering Lengths
- Statistical signatures of states orthogonal to the Fock-state ladder of composite bosons
- Energy and lifetime of resonant states with real basis sets
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- On the description of composite bosons in discrete models
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- Thermal dissipation in two dimensional relativistic Fermi gases with a relaxation time model
- Spatial correlations and entanglement in a hybrid system of N fermion pairs with harmonic interaction
- Degrees of Entanglement in Systems of Three Indistinguishable Bosons: Revisiting the Greenberger-Horne-Zeilinge State
- Persistent fermionic entanglement under decoherence
- Composite Bosons Superposition Ansatz Approach to One-Dimensional Trapped Few-Fermion Systems