Journal
PHYSICAL REVIEW LETTERS
Volume 122, Issue 14, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.143602
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Funding
- ERC [725636]
- DFG [JO970/1-1]
- Heidelberg Center for Quantum Dynamics
- DFG Collaborative Research Centre [SFB 1225]
- International Max-Planck Research School (IMPRS-QD)
- EU [706487]
- Daimler and Benz Foundation
- Marie Curie Actions (MSCA) [706487] Funding Source: Marie Curie Actions (MSCA)
- European Research Council (ERC) [725636] Funding Source: European Research Council (ERC)
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Many-body interference between indistinguishable particles can give rise to strong correlations rooted in quantum statistics. We study such Hanbury Brown-Twiss-type correlations for number states of ultracold massive fermions. Using deterministically prepared Li-6 atoms in optical tweezers, we measure momentum correlations using a single-atom sensitive time-of-flight imaging scheme. The experiment combines on-demand state preparation of highly indistinguishable particles with high-fidelity detection, giving access to two- and three-body correlations in fields of fixed fermionic particle number. We find that pairs of atoms interfere with a contrast close to 80%. We show that second-order density correlations arise from contributions from all two-particle pairs and detect intrinsic third-order correlations.
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