Observation and uses of position-space Bloch oscillations in an ultracold gas

Abstract

We report the direct observation and characterization of position-space Bloch oscillations using an ultracold gas in a tilted optical lattice. While Bloch oscillations in momentum space are a common feature of optical lattice experiments, the real-space center-of-mass dynamics are typically too small to resolve. Tuning into the regime of rapid tunneling and weak force, we observe real-space Bloch oscillation amplitudes of hundreds of lattice sites, in both ground and excited bands. We demonstrate two unique capabilities enabled by tracking of Bloch dynamics in position space: measurement of the full position-momentum phase-space evolution during a Bloch cycle, and direct imaging of the lattice band structure. These techniques, along with the ability to exert long-distance coherent control of quantum gases without modulation, may open up new possibilities for quantum control and metrology.

arXiv comment5 pages, 6 figures

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Cited by in corpus (40)

• Quantum Many-Body Scars in Optical Lattices
• Observation of Bloch Oscillations and Wannier-Stark Localization on a Superconducting Processor
• Quantifying and controlling prethermal nonergodicity in interacting Floquet matter
• Transport in Floquet-Bloch bands
• AC Oscillation of a Spin Soliton Driven by a Constant Force
• Engineering the Floquet spectrum of superconducting multiterminal quantum dots
• Multi-particle quantum walks and Fisher information in one-dimensional lattices
• Spatial Bloch oscillations of a quantum gas in a "beat-note" superlattice
• Experimental Realization of a Relativistic Harmonic Oscillator
• Many-body quantum dynamics of initially trapped systems due to a Stark potential --- thermalization vs. Bloch oscillations
• Site-Resolved Imaging of Bosonic Mott Insulator of ${}^7$Li atoms
• Chaos-Assisted Long-Range Tunneling for Quantum Simulation
• Floquet band engineering with Bloch oscillations
• Bloch-bands Picture for Light Pulse Atom Diffraction and Interferometry
• Bloch oscillations of multi-magnon excitations in a Heisenberg XXZ chain
• Measurement of a ${}^7$Li tune-out wavelength by phase-patterned atom interferometry
• Observation of Wannier-Stark localization at the surface of BaTiO${}_3$ films by photoemission
• From Bloch Oscillations to a Steady-State Current in Strongly Biased Mesoscopic Devices
• Rapid production of large ${}^7$Li Bose-Einstein condensates using $D_1$ gray molasses
• Moiré exciton condensate: nonlinear Dirac point, broken-symmetry Bloch waves and unusual optical selection rules
• Bloch Oscillations of a Soliton in a 1D Quantum Fluid
• Bloch-Landau-Zener oscillations in a quasi-periodic potential
• Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array
• ${\mathbb{Z}}_2$ phases and Majorana spectroscopy in paired Bose-Hubbard chains
• Supercurrent-carrying supersolid in spin-orbit-coupled Bose-Einstein condensates
• Transport controlled by Poincaré orbit topology in a driven inhomogeneous lattice gas
• Observation of the Wannier-Stark ladder in plasmonic waveguide arrays
• Non-exponential decay in Floquet-Bloch bands
• Multiparticle quantum walk: a dynamical probe of topological many-body excitations
• Generalized Bloch oscillations of ultracold lattice atoms subject to higher-order gradients
• Synthetic mean-field interactions in photonic lattices
• Statistics and dynamics of the center of mass coordinate in a quantum liquid
• Chaotic Bloch oscillations in dissipative optical systems driven by a periodic train of coherent pulses
• Chirped Bloch-Harmonic oscillations in a parametrically forced optical lattice
• Relativistic motion of an Airy wavepacket in a lattice potential
• Decoherence-assisted detection of entanglement of two qubit states
• Characterization of the chaotic phase in the tilted Bose-Hubbard model
• Excitation of Wannier-Stark states in a chain of coupled optical resonators with linear gain and nonlinear losses
• Nutation dynamics and multifrequency resonance in a many-body seesaw
• Bloch-Landau-Zener Oscillations in Moiré Lattices