Spin- and Momentum-Correlated Atom Pairs Mediated by Photon Exchange and Seeded by Vacuum Fluctuations
arXiv:2303.11326 · doi:10.1103/PhysRevLett.132.093402
Abstract
Engineering pairs of massive particles that are simultaneously correlated in their external and internal degrees of freedom is a major challenge, yet essential for advancing fundamental tests of physics and quantum technologies. In this Letter, we experimentally demonstrate a mechanism for generating pairs of atoms in well-defined spin and momentum modes. This mechanism couples atoms from a degenerate Bose gas via a superradiant photon-exchange process in an optical cavity, producing pairs via a single channel or two discernible channels. The scheme is independent of collisional interactions, fast and tunable. We observe a collectively enhanced production of pairs and probe interspin correlations in momentum space. We characterize the emergent pair statistics and find that the observed dynamics is consistent with being primarily seeded by vacuum fluctuations in the corresponding atomic modes. Together with our observations of coherent many-body oscillations involving well-defined momentum modes, our results offer promising prospects for quantum-enhanced interferometry and quantum simulation experiments using entangled matter waves.
arXiv comment15 pages, 6 figures
References in corpus (64)
- Quantum information with continuous variables
- Bell nonlocality
- Quantum metrology with nonclassical states of atomic ensembles
- Multi-photon entanglement and interferometry
- Cavity Opto-Mechanics with a Bose-Einstein Condensate
- Dynamics and statistical mechanics of ultra-cold Bose gases using c-field techniques
- Non-maximally entangled states: production, characterization and utilization
- Stimulating uncertainty: Amplifying the quantum vacuum with superconducting circuits
- Twin matter waves for interferometry beyond the classical limit
- Coherent spinor dynamics in a spin-1 Bose condensate
- Observation of self-amplifying Hawking radiation in an analog black hole laser
- Cavity QED with Quantum Gases: New Paradigms in Many-Body Physics
- Effective operator formalism for open quantum systems
- Three-body recombination at large scattering lengths in an ultracold atomic gas
- Pair Creation of Black Holes During Inflation
- Spatial entanglement patterns and Einstein-Podolsky-Rosen steering in a Bose-Einstein condensate
- Spatially distributed multipartite entanglement enables Einstein-Podolsky-Rosen steering of atomic clouds
- Quantum-Enhanced Sensing Based on Time Reversal of Nonlinear Dynamics
- Atomic homodyne detection of continuous variable entangled twin-atom states
- Entanglement between two spatially separated atomic modes
- Programmable Interactions and Emergent Geometry in an Atomic Array
- Twin-atom beams
- Photon-Mediated Spin-Exchange Dynamics of Spin-1 Atoms
- Time-Reversal-Based Quantum Metrology with Many-Body Entangled States
- Observation of atom pairs in spontaneous four wave mixing of two colliding Bose-Einstein Condensates
- Quantum Simulation of Coherent Hawking-Unruh Radiation
- Generation of macroscopic pair-correlated atomic beams by four-wave mixing in Bose-Einstein condensates
- Formation of a spin texture in a quantum gas coupled to a cavity
- Amplification of Fluctuations in a Spinor Bose Einstein Condensate
- Period-doubling Instability of Bose-Einstein Condensates Induced in Periodically Translated Optical Lattices
- Collective emission of matter-wave jets from driven Bose-Einstein condensates
- Emerging dissipative phases in a superradiant quantum gas with tunable decay
- Parametric amplification of vacuum fluctuations in a spinor condensate
- Spontaneous Four-Wave Mixing of de Broglie Waves: Beyond Optics
- Strong Quantum Spin Correlations Observed in Atomic Spin Mixing
- Momentum Entanglement for Atom Interferometry
- Connecting Berezinskii-Kosterlitz-Thouless and BEC phase transitions by tuning interactions in a trapped gas
- Improving cold-atom sensors with quantum entanglement: Prospects and challenges
- Squeezing on momentum states for atom interferometry
- Analysis of Kapitza-Dirac diffraction patterns beyond the Raman-Nath regime
- Einstein-Podolsky-Rosen experiment with two Bose-Einstein condensates
- Precision Measurement of the 87-Rb Tune-Out Wavelength in the Hyperfine Ground State F=1 at 790 nm
- Protecting Spin Coherence in a Tunable Heisenberg Model
- Tunable source of correlated atom beams
- Probing spin correlations in a Bose-Einstein condensate near the single atom level
- Hybrid apparatus for Bose-Einstein condensation and cavity quantum electrodynamics: Single atom detection in quantum degenerate gases
- A strong Bell correlation witness between spatially separated pairs of atoms
- Solving the quantum many-body problem via correlations measured with a momentum microscope
- Paired atom laser beams created via four-wave mixing
- Collinear Four-Wave Mixing of Two-Component Matter Waves
- Observation of pairs of atoms at opposite momenta in an equilibrium interacting Bose gas
- Proposal for a motional-state Bell inequality test with ultracold atoms
- A cavity-QED quantum simulator of dynamical phases of a BCS superconductor
- Observing dynamical currents in a non-Hermitian momentum lattice
- Precision inertial sensing with quantum gases
- Quantum phases of spinful Fermi gases in optical cavities
- Emission of Spin-correlated Matter-wave Jets from Spinor Bose-Einstein Condensates
- Sensitivity to thermal noise of atomic Einstein-Podolsky-Rosen entanglement
- Bell correlations in a split two-mode-squeezed Bose-Einstein condensate
- Bell inequality, Einstein-Podolsky-Rosen steering and quantum metrology with spinor Bose-Einstein condensates
- Coherent seeding of the dynamics of a spinor Bose-Einstein condensate: from quantum to classical behavior
- Variational truncated Wigner approximation for weakly interacting Bose fields: Dynamics of coupled condensates
- Thermal counting statistics in an atomic two-mode squeezed vacuum state
- A matter wave Rarity-Tapster interferometer to demonstrate non-locality
Cited by in corpus (7)
- Ensemble inequivalence in long-range quantum systems
- Dynamics of spin-momentum entanglement from superradiant phase transitions
- Quantifying two-mode entanglement of bosonic Gaussian states from their full counting statistics
- Atom-Molecule Superradiance and Entanglement with Cavity-Mediated Three-Body Interactions
- Self-Ordered Supersolid in Spinor Condensates with Cavity-Mediated Spin-Momentum-Mixing Interactions
- Ensemble Inequivalence in Long-Range Quantum Spin Systems
- Bell correlations between momentum-entangled pairs of atoms