Delocalization-enhanced Bloch oscillations and driven resonant tunneling in optical lattices for precision force measurements

Abstract

In this paper we describe and compare different methods used for accurate determination of forces acting on matter-wave packets in optical lattices. The quantum interference nature responsible for the production of both Bloch oscillations and coherent delocalization is investigated in detail. We study conditions for optimal detection of Bloch oscillation for a thermal ensemble of cold atoms with a large velocity spread. We report on the experimental observation of resonant tunneling in an amplitude-modulated (AM) optical lattice up to the sixth harmonic with Fourier-limited linewidth. We then explore the fundamental and technical phenomena which limit both the sensitivity and the final accuracy of the atomic force sensor at 10^{-7} precision level [1], with an analysis of the coherence time of the system and addressing few simple setup changes to go beyond the current accuracy.

18 pages, 10 figures

References in corpus (16)

• Many-Body Physics with Ultracold Gases
• Quantum Simulation of Antiferromagnetic Spin Chains in an Optical Lattice
• Quantum State Engineering and Precision Metrology using State-Insensitive Light Traps
• Long-lived Bloch oscillations with bosonic Sr atoms and application to gravity measurement at micrometer scale
• Single Particle Tunneling in Strongly Driven Double Well Potentials
• Control of Interaction-Induced Dephasing of Bloch Oscillations
• Observation of photon-assisted tunneling in optical lattices
• Precision measurement of gravity with cold atoms in an optical lattice and comparison with a classical gravimeter
• Atom interferometry with a weakly-interacting Bose Einstein condensate
• Coherent Delocalization of Atomic Wave Packets in Driven Lattice Potentials
• Expansion of a quantum gas released from an optical lattice
• A quantum sensor for atom-surface interactions below 10 $\mu$m
• Cooling and trapping of ultra-cold strontium isotopic mixtures
• Generalized acceleration theorem for spatiotemporal Bloch waves
• Atomic motion in tilted optical lattices
• A method of state-selective transfer of atoms between microtraps based on the Franck-Condon Principle

Cited by in corpus (6)

• A trapped atom interferometer with ultracold Sr atoms
• Topological pumping assisted by Bloch oscillations
• Bloch oscillations of multi-magnon excitations in a Heisenberg XXZ chain
• Floquet-surface bound states in the continuum in a resonantly driven 1D tilted defect-free lattice
• Artificial gauge fields and topological insulators in Moire superlattices
• Coherent control of quantum transport: modulation-enhanced phase detection and band spectroscopy