activity
20182025
most citedQuantumness of quantum channels

17 citations · 56 across the 13 of their papers we have counts for

collaborators

13 papers

quant-ph2025

A hierarchy of thermodynamically consistent quantum operations

Fereshte Shahbeigi, M. Hamed Mohammady

In order to determine what quantum operations and measurements are consistent with the laws of thermodynamics, one must start by allowing all processes allowed by the framework of…

math.RA2024

Generating Sets of Stochastic Matrices

Frederik vom Ende, Fereshte Shahbeigi

This paper introduces the concept of a generating set for stochastic matrices -- a subset of matrices whose repeated composition generates the entire set. Understanding such genera…

quant-ph2024

Channel nonlocality under decoherence

Albert Rico, Moisés Bermejo Morán, Fereshte Shahbeigi +1

The implementation of realistic quantum devices requires a solid understanding of the nonlocal resources present in quantum channels, and the effects of decoherence on them. Here w…

quant-ph2024★ 2 cited

Certifying nonlocal properties of noisy quantum operations

Albert Rico, Moisés Bermejo Morán, Fereshte Shahbeigi +1

Certifying quantum properties from the probability distributions they induce is an important task for several purposes. While this framework has been largely explored and used for…

quant-ph2024

Dephasing Noise Simulation for Coherence-Generating Devices

Roberto Salazar, Fereshte Shahbeigi

Advancing quantum technologies necessitates an in-depth exploration of how operations generate quantum resources and respond to noise. Crucial are gates generating quantum coherenc…

quant-ph2023★ 6 cited

Measurement sharpness and disturbance tradeoff

Nayere Saberian, Seyed Javad Akhtarshenas, Fereshte Shahbeigi

Obtaining information from a quantum system through a measurement typically disturbs its state. The postmeasurement states for a given measurement, however, are not unique and high…

quant-ph2023★ 5 cited

Quantum-embeddable stochastic matrices

Fereshte Shahbeigi, Christopher T. Chubb, Ryszard Kukulski +2

The classical embeddability problem asks whether a given stochastic matrix , describing transition probabilities of a -level system, can arise from the underlying homogeneous…

quant-ph2022

Accessible maps in a group of classical or quantum channels

Koorosh Sadri, Fereshte Shahbeigi, Zbigniew Puchała +1

We study the problem of accessibility in a set of classical and quantum channels admitting a group structure. Group properties of the set of channels, and the structure of the clos…

quant-ph2021★ 8 cited

Simulating of X-states and the two-qubit XYZ Heisenberg system on IBM quantum computer

Fereshte Shahbeigi, Mahsa Karimi, Vahid Karimipour

Two qubit density matrices, which are of X-shape, are a natural generalization of Bell Diagonal States (BDSs) recently simulated on the IBM quantum device. We generalize the previo…

quant-ph2021★ 9 cited

Quasi-inversion of quantum and classical channels in finite dimensions

Fereshte Shahbeigi, Koorosh Sadri, Morteza Moradi +2

We introduce the concept of quasi-inverse of quantum and classical channels, prove general properties of these inverses and determine them for a large class of channels acting in a…

quant-ph2020★ 7 cited

Log-Convex set of Lindblad semigroups acting on -level system

Fereshte Shahbeigi, David Amaro-Alcalá, Zbigniew Puchała +1

We analyze the set of mixed unitary channels represented in the Weyl basis and accessible by a Lindblad semigroup acting on an -level quantum system. General nece…

quant-ph2018★ 17 cited

Quantumness of quantum channels

Fereshte Shahbeigi, Seyed Javad Akhtarshenas

Quantum coherence is a fundamental aspect of quantum physics and plays a central role in quantum information science. This essential property of the quantum states could be fragile…

quant-ph2018★ 2 cited

How Quantum is a "Quantum Walk"?

F. Shahbeigi, S. J. Akhtarshenas, A. T. Rezakhani

We characterize quantumness of the so-called quantum walks (whose dynamics is governed by quantum mechanics) by introducing two computable measures which are stronger than the vari…