Facets of Correlated Non‐Markovian Channels

VB Sabale, NR Dash, A Kumar… - Annalen der …, 2024 - Wiley Online Library
The domain of correlated non‐Markovian channels are investigated, exploring the potential
memory arising from the correlated action of channels and the inherent memory due to non …

Toward Realization of Universal Quantum Teleportation Using Weak Measurements

VB Sabale, A Kumar, S Banerjee - Annalen der Physik, 2024 - Wiley Online Library
In this manuscript, universal quantum teleportation in the presence of memory or memory‐
less dynamics with applications of partial collapse measurement operators is analyzed …

Phase covariant channel: quantum speed limit of evolution

R Baruah, KG Paulson, S Banerjee - Annalen der Physik, 2023 - Wiley Online Library
The quantum speed of evolution for the phase covariant map is investigated. This involves
absorption, emission, and dephasing processes. The maps under various combinations of …

Classifying the non-time-local and entangling dynamics of an open qubit system

S Prudhoe, S Shandera - Journal of High Energy Physics, 2023 - Springer
A bstract We study families of dynamical maps generated from interactions with varying
degrees of symmetry. For a family of time-independent Hamiltonians, we demonstrate the …

Qudit states in noisy quantum channels

S Dutta, S Banerjee, M Rani - Physica Scripta, 2023 - iopscience.iop.org
In this work, we analyze a number of noisy quantum channels on a family of qudit states. The
channels studied are the dit-flip noise, phase flip noise, dit-phase flip noise, depolarizing …

Harnessing Quantumness of States using Discrete Wigner Functions under (non)‐Markovian Quantum Channels

J Lalita, KG Paulson, S Banerjee - Annalen der physik, 2023 - Wiley Online Library
The negativity of the discrete Wigner functions (DWFs) is a measure of non‐classicality and
is often used to quantify the degree of quantum coherence in a system. The study of Wigner …

The effect of quantum memory on quantum speed limit time for CP-(in) divisible channels

KG Paulson, S Banerjee, R Srikanth - Quantum Information Processing, 2022 - Springer
Quantum speed limit time defines the limit on the minimum time required for a quantum
system to evolve between two states. Investigation of bounds on speed limit time of quantum …

Protecting quantum correlations of negative quantum states using weak measurement under non-Markovian noise

J Lalita, S Banerjee - Physica Scripta, 2024 - iopscience.iop.org
The weak measurement (WM) and quantum measurement reversal (QMR) are crucial in
protecting the collapse of quantum states. The idea of WM and QMR has recently been used …

Towards an Effective Theory of Open Quantum Systems through Open Qubit Systems

S Prudhoe - 2024 - etda.libraries.psu.edu
We explore procedures to approximate the reduced dynamics of open qubit systems, to
understand the construction of effective open theories in more general systems. We provide …

Optimal teleportation fidelity and its deviation in noisy scenarios

P Bej, S Halder, R Sengupta - Modern Physics Letters A, 2023 - World Scientific
In this work, we study quantum teleportation, a fundamental protocol of quantum physics. In
particular, we present a mathematical methodology to study the combined effects of noisy …