Bose-Einstein condensate of metastable helium for quantum correlation experiments
arXiv:1406.1322 · doi:10.1103/PhysRevA.90.063607
Abstract
We report on the realization of Bose-Einstein condensation of metastable helium-4. After exciting helium to its metastable state in a novel pulse-tube cryostat source, the atomic beam is collimated and slowed. We then trap several 10^8 atoms in a magneto-optical trap. For subsequent evaporative cooling, the atoms are transferred into a magnetic trap. Degeneracy is achieved with typically a few 10^6 atoms. For detection of atomic correlations with high resolution, an ultrafast delay-line detector has been installed. Consisting of four quadrants with independent readout electronics that allow for true simultaneous detection of atoms, the detector is especially suited for quantum correlation experiments that require the detection of correlated subsystems. We expect our setup to allow for the direct demonstration of momentum entanglement in a scenario equivalent to the Einstein-Podolsky-Rosen gedanken experiment. This will pave the way to matter-wave experiments exploiting the peculiarities of quantum correlations.
arXiv comment10 pages, 12 figures
References in corpus (19)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- A quantum gas microscope - detecting single atoms in a Hubbard regime optical lattice
- Single-Atom Resolved Fluorescence Imaging of an Atomic Mott Insulator
- Observation of Bose-Einstein Condensation of Molecules
- Camparison of the Hanbury Brown-Twiss effect for bosons and fermions
- Hanbury Brown Twiss effect for ultracold quantum gases
- Bose-Einstein Condensation of Metastable Helium
- Twin-atom beams
- Observation of atom pairs in spontaneous four wave mixing of two colliding Bose-Einstein Condensates
- Cold and trapped metastable noble gases
- Generation of macroscopic pair-correlated atomic beams by four-wave mixing in Bose-Einstein condensates
- Single-particle-sensitive imaging of freely propagating ultracold atoms
- Violation of the Cauchy-Schwarz inequality with matter waves
- Detection of continuous variable entanglement without coherent local oscillators
- Paired atom laser beams created via four-wave mixing
- Einstein-Podolsky-Rosen correlations from colliding Bose-Einstein condensates
- Coherent Collisions between Bose-Einstein Condensates
- Atomic entanglement generation and detection via degenerate four-wave-mixing of a Bose-Einstein condensate in an optical lattice
- Doppler cooling of an optically dense cloud of trapped atoms
Cited by in corpus (22)
- Entanglement by Path Identity
- Quantum Indistinguishability by Path Identity: The awakening of a sleeping beauty
- Squeezing and entanglement of density oscillations in a Bose-Einstein condensate
- Nonclassicality of induced coherence without induced emission
- Twin Photon Correlations in Single-Photon Interference
- Fast production of Bose-Einstein condensates of metastable Helium
- Bell inequality, Einstein-Podolsky-Rosen steering and quantum metrology with spinor Bose-Einstein condensates
- Characterization of a detector chain using a FPGA-based Time-to-Digital Converter to reconstruct the three-dimensional coordinates of single particles at high flux
- Characterising and Tailoring Spatial Correlations in Multi-Mode Parametric Downconversion
- Can the double-slit experiment distinguish between quantum interpretations?
- Nanometer resolution mask lithography with matter waves: Near-field binary holography
- On detection statistics in double-double-slit experiment
- Towards thermal noise free optomechanics
- On the optimal design of grid-based binary holograms for matter wave lithography
- Ab initio interaction potentials and scattering lengths for ultracold mixtures of metastable helium and alkali-metal atoms
- Pair correlation of atoms scattered from colliding Bose-Einstein quasicondensates
- Simple method for producing Bose-Einstein condensates of metastable helium using a single beam optical dipole trap
- Rapid generation of metastable helium Bose-Einstein condensates
- Hubbard models with arbitrary structures in programmable optical lattices
- Open-Source Magnetometer for Characterizing Magnetic Fields in Ultracold Experiments
- Properties of atomic pairs produced in the collision of Bose-Einstein condensates
- Bell correlations between momentum-entangled pairs of atoms