activity
20172026
most citedDiscriminating qubit amplitude damping channels

13 citations · 44 across the 12 of their papers we have counts for

collaborators

12 papers

quant-ph2026

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…

quant-ph2025

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…

quant-ph2024★ 1 cited

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…

quant-ph2024

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…

quant-ph2023

Quantum reading of quantum information

Samad Khabbazi-Oskouei, Stefano Mancini, Milajiguli Rexiti

We extend the notion of quantum reading to the case where the information to be retrieved, which is encoded into a set of quantum channels, is of quantum nature. We use two qubit u…

quant-ph2022★ 5 cited

Profitable entanglement for channel discrimination

Samad Khabbazi Oskouei, Stefano Mancini, Milajiguli Rexiti

We investigate the usefulness of side entanglement in discriminating between two generic qubit channels, {\ up to unitary pre- and post-processing,} and determine exact conditions…

quant-ph2022★ 8 cited

Discrimination of dephasing channels

Milajiguli Rexiti, Laleh Memarzadeh, Stefano Mancini

The problem of dephasing channel discrimination is addressed for finite-dimensional systems. In particular, the optimization with respect to input states without energy constraint…

quant-ph2020★ 13 cited

Discriminating qubit amplitude damping channels

Milajiguli Rexiti, Stefano Mancini

We address the issue of the discrimination between two-qubit amplitude damping channels by exploring several strategies. For the single-shot, we show that the excited state does no…

quant-ph2019

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…

quant-ph2018★ 6 cited

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…

math-ph2018★ 7 cited

The Volume of Two-Qubit States by Information Geometry

Milajiguli Rexiti, Domenico Felice, Stefano Mancini

Using the information geometry approach, we determine the volume of the set of two-qubit states with maximally disordered subsystems. Particular attention is devoted to the behavio…

quant-ph2017★ 4 cited

Estimation of two-qubit interactions through channels with environment assistance

Milajiguli Rexiti, Stefano Mancini

We consider the estimation of two-qubit interactions when initial states of both qubit can be locally controlled, while the final state of only one qubit can be measured. This amou…