Ontology highlight
ABSTRACT:
SUBMITTER: Wolf F
PROVIDER: S-EPMC6606596 | biostudies-literature | 2019 Jul
REPOSITORIES: biostudies-literature
Nature communications 20190702 1
The quantum noise of the vacuum limits the achievable sensitivity of quantum sensors. In non-classical measurement schemes the noise can be reduced to overcome this limitation. However, schemes based on squeezed or Schrödinger cat states require alignment of the relative phase between the measured interaction and the non-classical quantum state. Here we present two measurement schemes on a trapped ion prepared in a motional Fock state for displacement and frequency metrology that are insensitive ...[more]