Control-Enhanced Sequential Scheme for General Quantum Parameter Estimation at the Heisenberg Limit.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.040501
Abstract: The advantage of quantum metrology has been experimentally demonstrated for phase estimations where the dynamics are commuting. General noncommuting dynamics, however, can have distinct features. For example, the direct sequential scheme, which can achieve the… read more here.
Keywords: heisenberg limit; scheme; sequential scheme; metrology ... See more keywords
π-Corrected Heisenberg Limit.
Sign Up to like & getrecommendations! Published in 2020 at "Physical review letters"
DOI: 10.1103/physrevlett.124.030501
Abstract: We consider the precision Δφ with which the parameter φ, appearing in the unitary map U_{φ}=e^{iφΛ}, acting on some type of probe system, can be estimated when there is a finite amount of prior information… read more here.
Keywords: heisenberg limit; corrected heisenberg; limit;
Deterministic Quantum Phase Estimation beyond N00N States.
Sign Up to like & getrecommendations! Published in 2023 at "Physical review letters"
DOI: 10.1103/physrevlett.130.123603
Abstract: The modern scientific method is critically dependent on precision measurements of physical parameters. A classic example is the measurement of the optical phase enabled by optical interferometry, where the error on the measured phase is… read more here.
Keywords: heisenberg limit; n00n states; phase estimation; phase ... See more keywords
Parameter Estimation of Wormholes beyond the Heisenberg Limit
Sign Up to like & getrecommendations! Published in 2018 at "Universe"
DOI: 10.3390/universe4110115
Abstract: We propose to exploit the quantum properties of nonlinear media to estimate the parameters of massless wormholes. The spacetime curvature produces a change in length with respect to Minkowski spacetime that can be estimated in… read more here.
Keywords: beyond heisenberg; parameter estimation; estimation wormholes; heisenberg limit ... See more keywords