Quantum estimation in an expanding spacetime
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Physics"
DOI: 10.1016/j.aop.2018.08.021
Abstract: Abstract We investigate the quantum estimation on the Hubble parameter of an expanding de Sitter space by quantum metrological techniques. By exploring the dynamics of a freely falling Unruh–DeWitt detector, which interacts with a scalar… read more here.
Keywords: coupling scalar; quantum; estimation; scalar field ... See more keywords
Quantum estimation of coupling strengths in driven-dissipative optomechanics
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.033508
Abstract: We exploit local quantum estimation theory to investigate the measurement of linear and quadratic coupling strengths in a driven-dissipative optomechanical system. For experimentally realistic values of the model parameters, we find that the linear coupling… read more here.
Keywords: coupling strengths; driven dissipative; quantum estimation; estimation coupling ... See more keywords
Optimal Measurements for Simultaneous Quantum Estimation of Multiple Phases.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.119.130504
Abstract: A quantum theory of multiphase estimation is crucial for quantum-enhanced sensing and imaging and may link quantum metrology to more complex quantum computation and communication protocols. In this Letter, we tackle one of the key… read more here.
Keywords: estimation multiple; estimation; optimal measurements; measurements simultaneous ... See more keywords
Measurement Noise Susceptibility in Quantum Estimation.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.130.160802
Abstract: Fisher information is a key notion in the whole field of quantum metrology. It allows for a direct quantification of the maximal achievable precision of the estimation of the parameters encoded in quantum states using… read more here.
Keywords: quantum; measurement noise; estimation; quantum estimation ... See more keywords
Optomechanics-Based Quantum Estimation Theory for Collapse Models
Sign Up to like & getrecommendations! Published in 2023 at "Entropy"
DOI: 10.3390/e25030500
Abstract: We make use of the powerful formalism of quantum parameter estimation to assess the characteristic rates of a continuous spontaneous localization (CSL) model affecting the motion of a massive mechanical system. We show that a… read more here.
Keywords: optomechanics based; collapse models; based quantum; estimation ... See more keywords