Generating random quantum channels

R Kukulski, I Nechita, Ł Pawela, Z Puchała… - Journal of …, 2021 - pubs.aip.org
Several techniques of generating random quantum channels, which act on the set of d-
dimensional quantum states, are investigated. We present three approaches to the problem …

Random generators of Markovian evolution: A quantum-classical transition by superdecoherence

W Tarnowski, I Yusipov, T Laptyeva, S Denisov… - Physical Review E, 2021 - APS
Continuous-time Markovian evolution appears to be manifestly different in classical and
quantum worlds. We consider ensembles of random generators of N-dimensional Markovian …

Quantum Monge-Kantorovich problem and transport distance between density matrices

S Friedland, M Eckstein, S Cole, K Życzkowski - Physical Review Letters, 2022 - APS
A quantum version of the Monge-Kantorovich optimal transport problem is analyzed. The
transport cost is minimized over the set of all bipartite coupling states ρ AB such that both of …

Resource theory of coherence based on positive-operator-valued measures

F Bischof, H Kampermann, D Bruß - Physical Review Letters, 2019 - APS
Quantum coherence is a fundamental feature of quantum mechanics and an underlying
requirement for most quantum information tasks. In the resource theory of coherence …

Skew information-based coherence generating power of quantum channels

Z Wu, L Zhang, SM Fei, J Wang - Quantum Information Processing, 2022 - Springer
We study the ability of a quantum channel to generate quantum coherence when it applies
to incoherent states. We define the measure of coherence generating power (CGP) for a …

Quantifying coherence of quantum channels via trace distance

Y Fan, X Guo, X Yang - Quantum Information Processing, 2022 - Springer
Quantum coherence is a fundamental resource in quantum information and computation.
Deep insight can be gained into the nature of coherence by studying the quantum channels …

Coherence of quantum channels

J Xu - Physical Review A, 2019 - APS
We investigate the coherence of quantum channels and establish a resource theory for
quantifying the coherence of quantum channels. To this aim, we define the incoherent …

Maximum relative entropy of coherence for quantum channels

ZX **, LM Yang, SM Fei, X Li-Jost, ZX Wang… - Science China Physics …, 2021 - Springer
Based on the resource theory for quantifying the coherence of quantum channels, we
introduce a new coherence quantifier for quantum channels via maximum relative entropy …

Quantifying channel coherence via the norm distance

M Ye, Y Luo, Y Li - Journal of Physics A: Mathematical and …, 2023 - iopscience.iop.org
Quantifying the number of resources contained in a physical object has been one of the core
topics in the resource theory of coherence. In this paper, we introduce the dynamical …

Random Lindblad operators obeying detailed balance

W Tarnowski, D Chruściński, S Denisov… - Open Systems & …, 2023 - World Scientific
We introduce different ensembles of random Lindblad operators ℒ, which satisfy quantum
detailed balance condition with respect to given stationary state σ of size N, and investigate …