Superposition of trajectories, which modify quantum evolutions by superposing paths through interferometry, has been utilized to enhance various quantum communication tasks …
We investigate the problem of reversing quantum dynamics, specifically via optimal Petz recovery maps. We focus on typical decoherence channels, such as dephasing …
We use symmetric measurement operators to construct quantum channels that provide a further generalization of generalized Pauli channels. The resulting maps are bistochastic …
W Xu, MS Li, ZJ Zheng - Physical Review A, 2024 - APS
We study the conditions to produce Markovian semigroups under the convex combinations of various generalized Weyl dephasing channels. We show that the convex combinations of …
This experimental study aims to investigate the convex combinations of Pauli semigroups with arbitrary mixing parameters to determine whether the resulting dynamical map exhibits …
We study the convex combinations of the (d+ 1)-generalized Pauli dynamical maps in a Hilbert space of dimension d. For certain choices of the decoherence function, the maps are …
We identify two broad types of noninvertibilities in quantum dynamical maps, one necessarily associated with CP indivisibility and one not so. We study the production of (non …
We study the conditions under which a semigroup is obtained upon convex combinations of channels. In particular, we study the set of Pauli and generalized Pauli channels. We find …
K Siudzińska - Journal of Physics A: Mathematical and …, 2022 - iopscience.iop.org
We analyze the connections between the non-Markovianity degree of the most general phase-damping qubit maps and their legitimate mixtures. Using the results for image non …