66 citations · 175 across the 7 of their papers we have counts for
7 papers
Quantum state smoothing as an optimal estimation problem with three different cost functions
Kiarn T. Laverick, Ivonne Guevara, Howard M. Wiseman
Quantum state smoothing is a technique to estimate an unknown true state of an open quantum system based on partial measurement information both prior and posterior to the time of…
Unifying theory of quantum state estimation using past and future information
Areeya Chantasri, Ivonne Guevara, Kiarn T. Laverick +1
Quantum state estimation for continuously monitored dynamical systems involves assigning a quantum state to an individual system at some time, conditioned on the results of continu…
Completely Positive Quantum Trajectories with Applications to Quantum State Smoothing
Ivonne Guevara, Howard M. Wiseman
Here, we are concerned with comparing estimation schemes for the quantum state under continuous measurement (quantum trajectories), namely quantum state filtering and, as introduce…
Quantum state smoothing: Why the types of observed and unobserved measurements matter
Areeya Chantasri, Ivonne Guevara, Howard M. Wiseman
We investigate the estimation technique called quantum state smoothing introduced by Guevara and Wiseman [Phys.~Rev.~Lett.~{\bf 115}, 180407 (2015)], which offers a valid quantum s…
Quantum State Smoothing
Ivonne Guevara, Howard Wiseman
Smoothing is an estimation method whereby a classical state (probability distribution for classical variables) at a given time is conditioned on all-time (both past and future) obs…
Average entanglement dynamics in open two-qubit systems with continuous monitoring
Ivonne Guevara, Carlos Viviescas
We present a comprehensive implementation of the quantum trajectory theory for the description of the entanglement dynamics in a Markovian open quantum system made of two qubits. W…
Entanglement dynamics in open two-qubit systems via diffusive quantum trajectories
Carlos Viviescas, Ivonne Guevara, André R. R. Carvalho +2
We use quantum diffusive trajectories to prove that the time evolution of two-qubit entanglement under spontaneous emission can be fully characterized by optimal continuous monitor…