Ontology highlight
ABSTRACT:
SUBMITTER: Wang W
PROVIDER: S-EPMC6763470 | biostudies-literature | 2019 Sep
REPOSITORIES: biostudies-literature
Nature communications 20190926 1
Two-mode interferometers lay the foundations for quantum metrology. Instead of exploring quantum entanglement in the two-mode interferometers, a single bosonic mode also promises a measurement precision beyond the shot-noise limit (SNL) by taking advantage of the infinite-dimensional Hilbert space of Fock states. Here, we demonstrate a single-mode phase estimation that approaches the Heisenberg limit (HL) unconditionally. Due to the strong dispersive nonlinearity and long coherence time of a mic ...[more]