Critical parametric quantum sensing
- URL: http://arxiv.org/abs/2107.04503v3
- Date: Wed, 29 Mar 2023 08:39:57 GMT
- Title: Critical parametric quantum sensing
- Authors: R. Di Candia, F. Minganti, K. V. Petrovnin, G. S. Paraoanu and S.
Felicetti
- Abstract summary: We assess the metrological power of parametric Kerr resonators undergoing driven-dissipative transitions.
We show that the Heisenberg precision can be achieved with experimentally reachable parameters.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Critical quantum systems are a promising resource for quantum metrology
applications, due to the diverging susceptibility developed in proximity of
phase transitions. Here, we assess the metrological power of parametric Kerr
resonators undergoing driven-dissipative phase transitions. We fully
characterize the quantum Fisher information for frequency estimation, and the
Helstrom bound for frequency discrimination. By going beyond the asymptotic
regime, we show that the Heisenberg precision can be achieved with
experimentally reachable parameters. We design protocols that exploit the
critical behavior of nonlinear resonators to enhance the precision of quantum
magnetometers and the fidelity of superconducting qubit readout.
Related papers
- Criticality-Enhanced Quantum Sensing with a Parametric Superconducting Resonator [0.0]
We implement a critical quantum sensor using a superconducting parametric (i.e., two-photon driven) Kerr resonator.
We show that quadratic precision scaling with respect to the system size can be achieved with finite values of the Kerr nonlinearity.
arXiv Detail & Related papers (2024-09-30T05:43:08Z) - Collective quantum enhancement in critical quantum sensing [37.69303106863453]
We show that collective quantum advantage can be achieved with a multipartite critical quantum sensor based on a parametrically coupled Kerr resonators chain.
We derive analytical solutions for the low-energy spectrum of this unconventional quantum many-body system.
We evaluate the scaling of the quantum Fisher information with respect to fundamental resources, and find that the critical chain achieves a quadratic enhancement in the number of resonators.
arXiv Detail & Related papers (2024-07-25T14:08:39Z) - Quantum sensing in Kerr parametric oscillators [0.0]
We show how the analysis of the phase space structure of the classical limit of Kerr parametric oscillators can be used for determining control parameters.
We also explore how quantum sensing can benefit from excited-state quantum phase transitions, even in the absence of a conventional quantum phase transition.
arXiv Detail & Related papers (2024-07-19T18:00:00Z) - Critical quantum metrology robust against dissipation and
non-adiabaticity [7.185507919945175]
A critical system near quantum phase transitions was predicted to be useful for improvement of metrological precision.
We show how to encode the signal to some physical quantity of a critical system using critical behaviors in the Jaynes-Cummings model.
We demonstrate such a metrological protocol in a superconducting circuit, where an Xmon qubit, interacting with a resonator, is used as a probe for estimating the amplitude of a microwave field.
arXiv Detail & Related papers (2024-03-07T13:19:41Z) - Mitigating Errors on Superconducting Quantum Processors through Fuzzy
Clustering [38.02852247910155]
A new Quantum Error Mitigation (QEM) technique uses Fuzzy C-Means clustering to specifically identify measurement error patterns.
We report a proof-of-principle validation of the technique on a 2-qubit register, obtained as a subset of a real NISQ 5-qubit superconducting quantum processor.
We demonstrate that the FCM-based QEM technique allows for reasonable improvement of the expectation values of single- and two-qubit gates based quantum circuits.
arXiv Detail & Related papers (2024-02-02T14:02:45Z) - Quantum metric and metrology with parametrically-driven Tavis-Cummings
models [4.419622364505575]
We study the quantum metric in a driven Tavis-Cummings model, comprised of multiple qubits interacting with a quantized photonic field.
We analytically solved the eigenenergies and eigenstates, and numerically simulated the system behaviors near the critical point.
arXiv Detail & Related papers (2023-12-13T14:20:03Z) - Probing finite-temperature observables in quantum simulators of spin
systems with short-time dynamics [62.997667081978825]
We show how finite-temperature observables can be obtained with an algorithm motivated from the Jarzynski equality.
We show that a finite temperature phase transition in the long-range transverse field Ising model can be characterized in trapped ion quantum simulators.
arXiv Detail & Related papers (2022-06-03T18:00:02Z) - Enhanced nonlinear quantum metrology with weakly coupled solitons and
particle losses [58.720142291102135]
We offer an interferometric procedure for phase parameters estimation at the Heisenberg (up to 1/N) and super-Heisenberg scaling levels.
The heart of our setup is the novel soliton Josephson Junction (SJJ) system providing the formation of the quantum probe.
We illustrate that such states are close to the optimal ones even with moderate losses.
arXiv Detail & Related papers (2021-08-07T09:29:23Z) - Experimental Adiabatic Quantum Metrology with the Heisenberg scaling [21.42706958416718]
We propose an adiabatic scheme on a perturbed Ising spin model with the first order quantum phase transition.
We experimentally implement the adiabatic scheme on the nuclear magnetic resonance and show that the achieved precision attains the Heisenberg scaling.
arXiv Detail & Related papers (2021-02-14T03:08:54Z) - In and out of equilibrium quantum metrology with mean-field quantum
criticality [68.8204255655161]
We study the influence that collective transition phenomena have on quantum metrological protocols.
The single spherical quantum spin (SQS) serves as stereotypical toy model that allows analytical insights on a mean-field level.
arXiv Detail & Related papers (2020-01-09T19:20:42Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.