Optimal scheme for quantum metrology

J Liu, M Zhang, H Chen, L Wang… - Advanced Quantum …, 2022 - Wiley Online Library
Quantum metrology can achieve far better precision than classical metrology, and is one of
the most important applications of quantum technologies in the real world. To attain the …

[HTML][HTML] Photonic quantum metrology

E Polino, M Valeri, N Spagnolo, F Sciarrino - AVS Quantum Science, 2020 - pubs.aip.org
Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …

Quantum-enhanced continuous-wave stimulated Raman scattering spectroscopy

RB de Andrade, H Kerdoncuff, K Berg-Sørensen… - Optica, 2020 - opg.optica.org
Stimulated Raman spectroscopy has become a powerful tool to study the spatiodynamics of
molecular bonds with high sensitivity, resolution, and speed. However, the sensitivity and …

Quantum metrology in the presence of limited data

J Rubio, J Dunningham - New Journal of Physics, 2019 - iopscience.iop.org
Quantum metrology protocols are typically designed around the assumption that we have an
abundance of measurement data, but recent practical applications are increasingly driving …

Overcoming detection loss and noise in squeezing-based optical sensing

G Frascella, S Agne, FY Khalili… - npj Quantum Information, 2021 - nature.com
Among the known resources of quantum metrology, one of the most practical and efficient is
squeezing. Squeezed states of atoms and light improve the sensing of the phase, magnetic …

Unbalanced beam splitters enabling enhanced phase sensitivity of a Mach-Zehnder interferometer using coherent and squeezed vacuum states

JD Zhang, S Wang - Physical Review A, 2023 - APS
An optical interferometer seeded by coherent and squeezed vacuum states seems to be the
most promising platform for gravitational wave detection. Prior studies regarding this …

Nonlinear phase estimation: Parity measurement approaches the quantum Cramér-Rao bound for coherent states

JD Zhang, ZJ Zhang, LZ Cen, JY Hu, Y Zhao - Physical Review A, 2019 - APS
Quantum-enhanced phase estimation paves the way for precision measurements and is of
great realistic significance. In this paper we theoretically investigate the second-order …

Twin beam quantum-enhanced correlated interferometry for testing fundamental physics

ST Pradyumna, E Losero, I Ruo-Berchera… - Communications …, 2020 - nature.com
Quantum metrology deals with improving the resolution of instruments that are otherwise
limited by shot noise and it is therefore a promising avenue for enabling scientific …

Generation and measurement of a squeezed vacuum up to 100 MHz at 1550 nm with a semi-monolithic optical parametric oscillator designed towards direct coupling …

N Takanashi, W Inokuchi, T Serikawa, A Furusawa - Optics Express, 2019 - opg.optica.org
We report generation and measurement of a squeezed vacuum from a semi-monolithic
Fabry-Pérot optical parametric oscillator (OPO) up to 100 MHz at 1550 nm. The output …

Quantum interferometric spectroscopy of a biexciton

H Seki, K Miyajima, R Shimizu - Physical Review A, 2022 - APS
Fourier transform spectroscopy with classical interferometry corresponds to the
measurement of a single-photon intensity spectrum from the viewpoint of the particle nature …