Quantum metrology with boundary time crystals
Quantum sensing is one of the arenas that exemplifies the superiority of quantum
technologies over their classical counterparts. Such superiority, however, can be diminished …
technologies over their classical counterparts. Such superiority, however, can be diminished …
A quantum battery with quadratic driving
Quantum batteries are energy storage devices built using quantum mechanical objects,
which are developed with the aim of outperforming their classical counterparts. Proposing …
which are developed with the aim of outperforming their classical counterparts. Proposing …
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 …
Microwave photon detection at parametric criticality
The detection of microwave fields at single-photon power levels is a much-sought-after
technology, with practical applications in nanoelectronics and quantum information science …
technology, with practical applications in nanoelectronics and quantum information science …
Critical quantum metrology assisted by real-time feedback control
We investigate critical quantum metrology, that is, the estimation of parameters in many-
body systems close to a quantum critical point, through the lens of Bayesian inference …
body systems close to a quantum critical point, through the lens of Bayesian inference …
Stark localization as a resource for weak-field sensing with super-Heisenberg precision
Gradient fields can effectively suppress particle tunneling in a lattice and localize the wave
function at all energy scales, a phenomenon known as Stark localization. Here, we show …
function at all energy scales, a phenomenon known as Stark localization. Here, we show …
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 …
Continuous Sensing and Parameter Estimation with the Boundary Time Crystal
A boundary time crystal is a quantum many-body system whose dynamics is governed by
the competition between coherent driving and collective dissipation. It is composed of N two …
the competition between coherent driving and collective dissipation. It is composed of N two …
Quantum metrology and sensing with many-body systems
The main power of quantum sensors is achieved when the probe is composed of several
particles. In this situation, quantum features such as entanglement contribute in enhancing …
particles. In this situation, quantum features such as entanglement contribute in enhancing …
Learning feedback control strategies for quantum metrology
We consider the problem of frequency estimation for a single bosonic field evolving under a
squeezing Hamiltonian and continuously monitored via homodyne detection. In particular …
squeezing Hamiltonian and continuously monitored via homodyne detection. In particular …