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Mathematical Models of Markovian Dephasing
Franco Fagnola, John E. Gough, Hendra I. Nurdin +1
We develop a notion of dephasing under the action of a quantum Markov semigroup in terms of convergence of operators to a block-diagonal form determined by irreducible invariant su…
Ramsey Interferometry in Correlated Quantum Noise Environments
Félix Beaudoin, Leigh M. Norris, Lorenza Viola
We quantify the impact of spatio-temporally correlated Gaussian quantum noise on frequency estimation by Ramsey interferometry. While correlations in a classical noise environment…
Optimally band-limited spectroscopy of control noise using a qubit sensor
Leigh M. Norris, Dennis Lucarelli, Virginia M. Frey +3
Classical control noise is ubiquitous in qubit devices, making its accurate spectral characterization essential for designing optimized error suppression strategies at the physical…