A Quantum Coherence Microscope in the Hubbard Regime
- URL: http://arxiv.org/abs/2608.09924v1
- Date: Mon, 10 Aug 2026 17:59:02 GMT
- Title: A Quantum Coherence Microscope in the Hubbard Regime
- Abstract summary: We introduce a quantum coherence microscope that maps off-diagonal correlations onto site-resolved density signals with near-single-site resolution.<n>This work opens new possibilities for accessing observables beyond the density basis through tailored matter-wave evolution and recapture.
- Score: 0.9665521834265541
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- 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.
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