Combining critical and quantum metrology
Critical metrology relies on the precise preparation of a system in its ground state near a
quantum phase transition point where quantum correlations get very strong. Typically, this …
quantum phase transition point where quantum correlations get very strong. Typically, this …
Optimal generators for quantum sensing
We propose a computationally efficient method to derive the unitary evolution that a
quantum state is most sensitive to. This allows one to determine the optimal use of an …
quantum state is most sensitive to. This allows one to determine the optimal use of an …
Estimating phase parameters of a three-level system interacting with two classical monochromatic fields in simultaneous and individual metrological strategies
NE Abouelkhir, A Slaoui, H El Hadfi… - Journal of the Optical …, 2023 - opg.optica.org
Recently, the Hilbert–Schmidt speed, as a special class of quantum statistical speed, has
been reported to improve interferometric phase in a single-parameter quantum estimation …
been reported to improve interferometric phase in a single-parameter quantum estimation …
[HTML][HTML] Enhancement of opto-electro-mechanical entanglement through three-level atoms
AS Kussia, TY Darge, TG Tesfahannes, AT Bimeraw… - Physics Letters A, 2024 - Elsevier
We address the dynamical bipartite entanglement in an opto-electro-mechanical system that
involves a three-level atom. The system consists of a degenerate three-level atom, a …
involves a three-level atom. The system consists of a degenerate three-level atom, a …
Enhancement of quantum sensing in a cavity-optomechanical system around the quantum critical point
The precision of quantum sensing could be improved by exploiting quantum phase
transitions, where the physical quantity tends to diverge when the system approaches the …
transitions, where the physical quantity tends to diverge when the system approaches the …
Exploring the feasibility of optomechanical systems for temperature estimation in interferometric setups
M Shirzad, R Roknizadeh, A Mahdifar - Physical Review A, 2024 - APS
Accurate temperature measurement is critical in many scientific and engineering fields, so
that researchers continuously strive to improve the accuracy, sensitivity, and robustness of …
that researchers continuously strive to improve the accuracy, sensitivity, and robustness of …
Influence of thermal effects on the optomechanical coupling rate in acousto-optic cavities
Optomechanical (OM) cavities simultaneously localize photons and phonons, thus
enhancing their mutual interaction through radiation-pressure force. This acousto-optic …
enhancing their mutual interaction through radiation-pressure force. This acousto-optic …
Error tradeoff relation for estimating the unitary-shift parameter of a relativistic spin-1/2 particle
S Funada, J Suzuki - Physical Review A, 2024 - APS
The purpose of this paper is to discuss the existence of a nontrivial tradeoff relation for
estimating two unitary-shift parameters in a relativistic spin-1/2 system. It is shown that any …
estimating two unitary-shift parameters in a relativistic spin-1/2 system. It is shown that any …
Bulk-boundary correspondence in topological systems with the momentum dependent energy shift
HY Wang, ZB Yang, WM Liu - Quantum Science and Technology, 2024 - iopscience.iop.org
Bulk-boundary correspondence (BBC) remains the central topic in modern condensed
matter physics and has received a boost of interest with the recent discovery of non …
matter physics and has received a boost of interest with the recent discovery of non …
Enhancement in temperature sensing of a reservoir by Kerr-nonlinear resonator
N Akhtar, JX Peng, X Yang, Y Chen - ar** high-precision temperature sensors is an important issue that
has recently received a lot of attention. In this work, we introduce an estimation technique to …
has recently received a lot of attention. In this work, we introduce an estimation technique to …