Spatial Bloch oscillations of a quantum gas in a "beat-note" superlattice
arXiv:2106.04542 · doi:10.1103/PhysRevLett.127.020601
Abstract
We report the experimental realization of a new kind of optical lattice for ultra-cold atoms where arbitrarily large separation between the sites can be achieved without renouncing to the stability of ordinary lattices. Two collinear lasers, with slightly different commensurate wavelengths and retroreflected on a mirror, generate a superlattice potential with a periodic "beat-note" profile where the regions with large amplitude modulation provide the effective potential minima for the atoms. To prove the analogy with a standard large spacing optical lattice we study Bloch oscillations of a Bose Einstein condensate with negligible interactions in the presence of a small force. The observed dynamics between sites separated by ten microns for times exceeding one second proves the high stability of the potential. This novel lattice is the ideal candidate for the coherent manipulation of atomic samples at large spatial separations and might find direct application in atom-based technologies like trapped atom interferometers and quantum simulators.
arXiv comment5 pages, 4 figures
References in corpus (33)
- Direct Observation of Tunneling and Nonlinear Self-Trapping in a single Bosonic Josephson Junction
- Many-Body Physics with Individually-Controlled Rydberg Atoms
- Berezinskii-Kosterlitz-Thouless Crossover in a Trapped Atomic Gas
- Matter-wave interferometry in a double well on an atom chip
- Precision Measurement of the Newtonian Gravitational Constant Using Cold Atoms
- Parallel implementation of high-fidelity multi-qubit gates with neutral atoms
- Direct Observation of Second Order Atom Tunnelling
- Atom interferometry with Bose-Einstein condensates in a double-well potential
- Quantum computing with neutral atoms
- Strongly Correlated Quantum Walks in Optical Lattices
- Landau and Dynamical Instabilities of the Superflow of Bose-Einstein Condensates in Optical Lattices
- Long Phase Coherence Time and Number Squeezing of two Bose-Einstein Condensates on an Atom Chip
- Superfluid and Dissipative Dynamics of a Bose-Einstein Condensate in a Periodic Optical Potential
- Integrated Mach-Zehnder interferometer for Bose-Einstein condensates
- A new determination of the fine structure constant based on Bloch oscillations of ultracold atoms in a vertical optical lattic
- Revealing Hidden Antiferromagnetic Correlations in Doped Hubbard Chains via String Correlators
- Atom interferometry with a weakly-interacting Bose Einstein condensate
- Quantum state magnification
- Imaging magnetic polarons in the doped Fermi-Hubbard model
- Feshbach resonances in ultracold K(39)
- Ultra-precise holographic beam shaping for microscopic quantum control
- Dispersion management for atomic matter waves
- Observation of Quantum Phase Transitions with Parity-Symmetry Breaking and Hysteresis
- Time-Resolved Observation of Spin-Charge Deconfinement in Fermionic Hubbard Chains
- Atomtronics-enabled Quantum Technologies
- Crossing Over from Attractive to Repulsive Interactions in a Tunneling Bosonic Josephson Junction
- Direct observation of incommensurate magnetism in Hubbard chains
- Observation and uses of position-space Bloch oscillations in an ultracold gas
- Measuring Energy Differences by BEC Interferometry on a Chip
- Direct evaporative cooling of 39K atoms to Bose-Einstein condensation
- Bose-Einstein condensation in a magnetic double-well potential
- Low-noise optical lattices for ultracold Li
- Quantum dynamics in potentials with fast spatial oscillations
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