Emission of Spin-correlated Matter-wave Jets from Spinor Bose-Einstein Condensates

Abstract

We report the observation of matter-wave jet emission in a strongly ferromagnetic spinor Bose-Einstein condensate of ${}^7$Li atoms. Directional atomic beams with $|F=1,m_F=1⟩$ and $|F=1,m_F=-1⟩$ spin states are generated from $|F=1,m_F=0⟩$ state condensates, or vice versa. This results from collective spin-mixing scattering events, where spontaneously produced pairs of atoms with opposite momentum facilitates additional spin-mixing collisions as they pass through the condensates. The matter-wave jets of different spin states ($|F=1,m_F=\pm 1⟩$) can be a macroscopic Einstein-Podolsky-Rosen state with spacelike separation. Its spin-momentum correlations are studied by using the angular correlation function for each spin state. Rotating the spin axis, the inter-spin and intra-spin momentum correlation peaks display a high contrast oscillation, indicating collective coherence of the atomic ensembles. We provide numerical calculations that describe the experimental results at a quantitative level and can identify its entanglement after 100~ms of a long time-of-flight.

arXiv comment13 pages(6 main text, 7 supplemental material), 12 figures

References in corpus (36)

• Quantum metrology with nonclassical states of atomic ensembles
• Spinor Bose-Einstein condensates
• Atom chip based generation of entanglement for quantum metrology
• Squeezing and entanglement in a Bose-Einstein condensate
• Twin matter waves for interferometry beyond the classical limit
• Spin-Nematic Squeezed Vacuum in a Quantum Gas
• Scalable Spin Squeezing for Quantum-Enhanced Magnetometry with Bose-Einstein Condensates
• Detecting multiparticle entanglement of Dicke states
• Suppression and enhancement of impurity scattering in a Bose-Einstein condensate
• Resonant control of spin dynamics in ultracold quantum gases by microwave dressing
• Spatially distributed multipartite entanglement enables Einstein-Podolsky-Rosen steering of atomic clouds
• Squeezing and entanglement of atomic beams
• Atomic homodyne detection of continuous variable entangled twin-atom states
• Entanglement between two spatially separated atomic modes
• Theory of superradiant scattering of laser light from Bose-Einstein condensates
• Observation of atom pairs in spontaneous four wave mixing of two colliding Bose-Einstein Condensates
• Quantum Simulation of Coherent Hawking-Unruh Radiation
• Beating the classical precision limit with spin-1 Dicke state of more than 10000 atoms
• 0.75 atoms improve the clock signal of 10,000 atoms
• Generation of macroscopic pair-correlated atomic beams by four-wave mixing in Bose-Einstein condensates
• Spontaneous Emission in a Matter-Wave Open Quantum System
• Collective emission of matter-wave jets from driven Bose-Einstein condensates
• Theory of an Entanglement Laser
• Quantum flutter of supersonic particles in one-dimensional quantum liquids
• Parametric amplification of vacuum fluctuations in a spinor condensate
• Polarization-Entangled Light Pulses of 10^5 Photons
• Quenched binary Bose-Einstein condensates: spin domain formation and coarsening
• Calibrating High Intensity Absorption Imaging of Ultracold Atoms
• Observation of a strongly ferromagnetic spinor Bose-Einstein condensate
• Density waves and jet emission asymmetry in Bose Fireworks
• Quantum Noise, Scaling and Domain Formation in a Spinor BEC
• Complex correlations in high harmonic generation of matter-wave jets revealed by pattern recognition
• Observation of collective atomic recoil motion in a momentum-squeezed, ultra-cold, degenerate fermion gas
• Directional `superradiant' collisions: bosonic amplification of atom pairs emitted from an elongated Bose-Einstein condensate
• Dynamics and Density Correlations in Matter Wave Jet Emission of a Driven Condensate
• Emission of correlated jets from a driven matter-wave soliton in a quasi-one-dimensional geometry

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