6 papers · 1 filter
Entanglement-Assisted Timing Optimization for Discriminating Amplitude-Damping Dynamics
Massimiliano F. Sacchi, Milajiguli Rexiti, Stefano Mancini
We analyze minimum-error discrimination of two qubit dynamical processes generated by phase-covariant amplitude-damping Lindbladians in a single-use scenario. The optimization invo…
Bayesian and Markovian classical feedforward for discriminating qubit channels
Milajiguli Rexiti, Stefano Mancini
We address the issue of multishot discrimination between two qubit channels by invoking a simple adaptive protocol that employs Helstrom measurement at each step and classical info…
Discrimination of bosonic dephasing quantum channels
Samad Khabbazi Oskouei, Laleh Memarzadeh, Milajiguli Rexiti +1
We study the possibility of discriminating between two bosonic dephasing quantum channels. We show that unambiguous discrimination is not realizable. We then consider discriminatio…
On the effectiveness of Bayesian discrete feedback for quantum information reclaiming
Milajiguli Rexiti, Samad Khabbazi Oskouei, Stefano Mancini
We consider discrete time feedback aimed at reclaiming quantum information after a channel action. We compare Bayesian and Markovian strategies. We show that the former does not of…
Quantum estimation through a bottleneck
Milajiguli Rexiti, Stefano Mancini
We study the estimation of a single parameter characterizing families of unitary transformations acting on two systems. We consider the situation with the presence of bottleneck, i…
Adversarial vs cooperative quantum estimation
Milajiguli Rexiti, Stefano Mancini
We address the estimation of a one-parameter family of isometries taking one input into two output systems. This primarily allows us to consider imperfect estimation by accessing o…