20 citations · 72 across the 15 of their papers we have counts for
7 papers · 1 filter
Fundamental noisy multiparameter quantum bounds
Shibdas Roy
Quantum multiparameter estimation involves estimating multiple parameters simultaneously and can be more precise than estimating them individually. Our interest here is to determin…
Robust Guaranteed-Cost Adaptive Quantum Phase Estimation
Shibdas Roy, Dominic W. Berry, Ian R. Petersen +1
Quantum parameter estimation plays a key role in many fields like quantum computation, communication and metrology. Optimal estimation allows one to achieve the most precise parame…
Robust Adaptive Quantum Phase Estimation
Shibdas Roy, Ian R. Petersen, Elanor H. Huntington
Quantum parameter estimation is central to many fields such as quantum computation, communications and metrology. Optimal estimation theory has been instrumental in achieving the b…
Coherent-Classical Estimation versus Purely-Classical Estimation for Linear Quantum Systems
Shibdas Roy, Ian R. Petersen, Elanor H. Huntington
We consider a coherent-classical estimation scheme for a class of linear quantum systems. It comprises an estimator that is a mixed quantum-classical system without involving coher…
Robust Phase Estimation of Squeezed State
Shibdas Roy, Ian R. Petersen, Elanor H. Huntington
Optimal phase estimation of a phase-squeezed quantum state of light has been recently shown to beat the coherent-state limit. Here, the estimation is made robust to uncertainties i…
Adaptive Continuous Homodyne Phase Estimation Using Robust Fixed-Interval Smoothing
Shibdas Roy, Ian R. Petersen, Elanor H. Huntington
Adaptive homodyne estimation of a continuously evolving optical phase using time-symmetric quantum smoothing has been demonstrated experimentally to provide superior accuracy in th…