Optimality and noise resilience of critical quantum sensing
We compare critical quantum sensing to passive quantum strategies to perform frequency
estimation, in the case of single-mode quadratic Hamiltonians. We show that, while in the …
estimation, in the case of single-mode quadratic Hamiltonians. We show that, while in the …
Thermometry of strongly correlated fermionic quantum systems using impurity probes
We study quantum-impurity models as a platform for quantum thermometry. A single
quantum spin-1 2 impurity is coupled to an explicit, structured, fermionic thermal sample …
quantum spin-1 2 impurity is coupled to an explicit, structured, fermionic thermal sample …
Critical quantum metrology in the non-linear quantum Rabi model
ZJ Ying, S Felicetti, G Liu, D Braak - Entropy, 2022 - mdpi.com
The quantum Rabi model (QRM) with linear coupling between light mode and qubit exhibits
the analog of a second-order phase transition for vanishing mode frequency which allows …
the analog of a second-order phase transition for vanishing mode frequency which allows …
Switchable superradiant phase transition with Kerr magnons
G Liu, W Xiong, ZJ Ying - Physical Review A, 2023 - APS
The superradiant phase transition (SPT) has been widely studied in cavity quantum
electrodynamics (CQED). However, this SPT is still subject to ongoing debates due to the no …
electrodynamics (CQED). However, this SPT is still subject to ongoing debates due to the no …
Modular many-body quantum sensors
C Mukhopadhyay, A Bayat - Physical Review Letters, 2024 - APS
Quantum many-body systems undergoing phase transitions have been proposed as probes
enabling beyond-classical enhancement of sensing precision. However, this enhancement …
enabling beyond-classical enhancement of sensing precision. However, this enhancement …
Multiparameter critical quantum metrology with impurity probes
Multiparameter critical quantum metrology with impurity probes - IOPscience Skip to content
IOP Science home Accessibility Help Search Journals Journals list Browse more than 100 …
IOP Science home Accessibility Help Search Journals Journals list Browse more than 100 …
Criticality-enhanced electric field gradient sensor with single trapped ions
We propose and analyze a driven-dissipative quantum sensor that is continuously
monitored close to a dissipative critical point. The sensor relies on the critical open Rabi …
monitored close to a dissipative critical point. The sensor relies on the critical open Rabi …
Squeezing and overcoming the Heisenberg scaling with spin-orbit coupled quantum gases
We predict that exploiting spin-orbit coupling in a harmonically trapped spinor quantum gas
can lead to scaling of the optimal measurement precision beyond the Heisenberg scaling …
can lead to scaling of the optimal measurement precision beyond the Heisenberg scaling …
Quantum Fisher information and polaron picture for the identification of transition coupling in the quantum Rabi model
ZJ Ying, WL Wang, BJ Li - Physical Review A, 2024 - APS
The quantum Rabi model (QRM) is a fundamental model for light-matter interactions. A
fascinating feature of the QRM is that it manifests a quantum phase transition which is …
fascinating feature of the QRM is that it manifests a quantum phase transition which is …
Ultrastrong linear optomechanical interaction
Light-matter interaction in the ultrastrong coupling regime can be used to generate exotic
ground states with two-mode squeezing and may be useful for quantum-enhanced sensing …
ground states with two-mode squeezing and may be useful for quantum-enhanced sensing …