Ultrarobust calibration of an optical lattice depth based on a phase shift

Abstract

We report on a new method to calibrate the depth of an optical lattice. It consists in triggering the intrasite dipole mode of the cloud by a sudden phase shift. The corresponding oscillatory motion is directly related to the intraband frequencies on a large range of lattice depths. Remarkably, for a moderate displacement, a single frequency dominates this oscillation for the zeroth and first order interference pattern observed after a sufficiently long time-of-flight. The method is robust against atom-atom interactions and the exact value of the extra external confinement of the initial trapping potential.

arXiv comment7 pages, 6 figures

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Cited by in corpus (14)

• Introduction to Theoretical and Experimental aspects of Quantum Optimal Control
• Quantum state control of a Bose-Einstein condensate in an optical lattice
• Chaos-assisted tunneling resonances in a synthetic Floquet superlattice
• Demonstration of a programmable optical lattice atom interferometer
• A regular Hamiltonian halting ratchet for matter wave transport
• Resonant excitations of a Bose Einstein condensate in an optical lattice
• Phase-space distributions of Bose-Einstein condensates in an optical lattice: Optimal shaping and reconstruction
• Beyond effective Hamiltonians: micromotion of Bose Einstein condensates in periodically driven optical lattices
• Rabi oscillations and Ramsey-type pulses in ultracold bosons: Role of interactions
• Observation and control of quantized scattering halos
• Direct cooling in an optical lattice by amplitude modulation
• Lattice-depth measurement using multi-pulse atom diffraction in and beyond the weakly diffracting limit
• Unitary Transformations using Robust Optimal Control on a Cold Atom Qudit
• Lattice-depth measurement using continuous grating atom diffraction