Activation of indistinguishability-based quantum coherence for enhanced metrological applications with particle statistics imprint.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 35594392.
- Also identified by DOI 10.1073/pnas.2119765119 and PMC identifier 9173775.
- Licence recorded as CC BY-NC-ND.
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Abstract
SignificanceQuantum coherence has a fundamentally different origin for nonidentical and identical particles since for the latter a unique contribution exists due to indistinguishability. Here we experimentally show how to exploit, in a controllable fashion, the contribution to quantum coherence stemming from spatial indistinguishability. Our experiment also directly proves, on the same footing, the different role of particle statistics (bosons or fermions) in supplying coherence-enabled advantage for quantum metrology. Ultimately, our results provide insights toward viable quantum-enhanced technologies based on tunable indistinguishability of identical building blocks.