Control-enhanced non-Markovian quantum metrology
Quantum metrology promises unprecedented precision of parameter estimation, but it is
often vulnerable to noise. While significant efforts have been devoted to improving the …
often vulnerable to noise. While significant efforts have been devoted to improving the …
Quantifying spectral signatures of non-Markovianity beyond the Born-Redfield master equation
Memory or time-non-local effects in open quantum dynamics pose theoretical as well as
practical challenges in the understanding and control of noisy quantum systems. While there …
practical challenges in the understanding and control of noisy quantum systems. While there …
Heisenberg-limited metrology with perturbing interactions
We show that it is possible to perform Heisenberg-limited metrology on GHZ-like states, in
the presence of generic spatially local, possibly strong interactions during the measurement …
the presence of generic spatially local, possibly strong interactions during the measurement …
Limitations to Dynamical Error Suppression and Gate-Error Virtualization from Temporally Correlated Nonclassical Noise
Realistic multiqubit noise processes often result in error mechanisms that are not captured
by the probabilistic Markovian error models commonly employed in circuit-level analyses of …
by the probabilistic Markovian error models commonly employed in circuit-level analyses of …
Modeling of decoherence and fidelity enhancement during transport of entangled qubits
AS Mokeev, YN Zhang, VV Dobrovitski - arxiv preprint arxiv:2409.04404, 2024 - arxiv.org
Entangled qubits transported through space is a key element in many prospective quantum
information systems, from long-distance quantum communication to large modular quantum …
information systems, from long-distance quantum communication to large modular quantum …
Nearly Heisenberg-limited noise-unbiased frequency estimation by tailored sensor design
We consider entanglement-assisted frequency estimation by Ramsey interferometry in the
presence of dephasing noise from general spatiotemporally correlated environments. By …
presence of dephasing noise from general spatiotemporally correlated environments. By …
Universal bounds for quantum metrology in the presence of correlated noise
We derive fundamental bounds for general quantum metrological models involving both
temporal or spatial correlations (mathematically described by quantum combs), which may …
temporal or spatial correlations (mathematically described by quantum combs), which may …
Optimal asymptotic precision bounds for nonlinear quantum metrology under collective dephasing
F Riberi, L Viola - arxiv preprint arxiv:2501.00189, 2024 - arxiv.org
Interactions among sensors can provide, in addition to entanglement, an important resource
for boosting the precision in quantum estimation protocols. Dephasing noise, however …
for boosting the precision in quantum estimation protocols. Dephasing noise, however …
Double Decay Parameter Estimation with Autoregressive and Differential Linear Regression
Presented in this paper is a method of formulating a double-decay nuclear process
parameter estimation problem as a linear regression problem that can be analytically …
parameter estimation problem as a linear regression problem that can be analytically …
Differential And Autoregressive Linear Regression Models For Lorentzian Profile Fitting Problem
The paper presents a formulation of a lorentzian profile fitting problem as a linear regression
problem, solvable in closed-form. This is essentially a parameter estimation problem for …
problem, solvable in closed-form. This is essentially a parameter estimation problem for …