Year: 2026
Type: preprint
Abstract: Quantum coherence underlies collective quantum phenomena and emerging quantum technologies. Quantum gas microscopes have transformed quantum simulation by providing projective snapshots of many-body states with single-atom resolution, but spatially resolved measurements of off-diagonal correlations have remained elusive. Here, using the Talbot effect, we introduce a quantum coherence microscope that maps off-diagonal correlations onto site-resolved density signals with near-single-site resolution. We use this technique to locally probe the superfluid-Mott transition in a layer of a three-dimensional optical lattice and to measure coherence beyond nearest neighbors in an engineered potential landscape. By mapping off-diagonal correlations onto density signals through controlled Talbot evolution, this work opens new possibilities for accessing observables beyond the density basis through tailored matter-wave evolution and recapture.
Source: arXiv (Cornell University)
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1286236842, G1314494723, G149988304, G1703493313, G1717380892, G1863003419, Colder than Ultracold: Reaching Record-low Temperatures in Cold-atom Quantum Simulators, G3083819904, G3236695045, G42916606, G5261056217, Center for Ultracold Atoms, G7452299184, G758721562, G8876996369, G969889393
OpenAlex ID: W7202217829
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