Results 121 to 130 of about 4,229,081 (350)
Noise is resource-contextual in quantum communication
Physical Review ResearchEstimating the information transmission capability of a quantum channel remains one of the fundamental problems in quantum information processing. In contrast to classical channels, the information-carrying capability of quantum channels is contextual ...
Aditya Nema +3 more
doaj +1 more source
Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst
Advanced Functional Materials, EarlyView.This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu +3 more
wiley +1 more source
Dynamical memory effects in correlated quantum channels [PDF]
, 2016 Memory effects play a fundamental role in the study of the dynamics of open quantum systems. There exist two conceptually distinct notions of memory discussed for quantum channels in the literature.
C. Addis +3 more
semanticscholar +1 more source
Non-equilibrium equalities with unital quantum channels
, 2013 A general tool for description of open quantum systems is given by the formalism of quantum operations. Most important of them are trace-preserving maps also known as quantum channels.
Rastegin, Alexey E.
core +1 more source
On Partially Trace Distance Preserving Maps and Reversible Quantum Channels
Journal of Applied Mathematics, 2013 We give a characterization of trace-preserving and positive linear maps preserving trace distance partially, that is, preservers of trace distance of quantum states or pure states rather than all matrices.
Long Jian, Kan He, Qing Yuan, Fei Wang
doaj +1 more source
The power of entangled quantum channels [PDF]
arXiv, 2001 All communication channels are at bottom quantum mechanical. Quantum mechanics contributes both obstacles to communication in the form of noise, and opportunities in the use of intrinsically quantum representations for information. This paper investigates the trade-off between power and communication rate for coupled quantum channels.
arxiv
Advanced Functional Materials, EarlyView.Photodetectors made using perovskite single crystals in combination with free‐standing cholesteric liquid crystal (CLC) polymer films exhibit photocurrent dissymmetry factors up to 1.95 for 520 nm circularly polarized light (CPL) excitation. The CPL spectral response of the photodetector is tunable over a broad range of wavelengths by tuning the ...
Yifan Feng +9 more
wiley +1 more source
Quantum simulation of quantum channels in nuclear magnetic resonance [PDF]
, 2017 We propose and experimentally demonstrate an efficient framework for the quantum simulation of quantum channels in NMR. Our approach relies on the suitable decomposition of non-unitary operators in a linear combination of $d$ unitary ones, which can be ...
T. Xin +4 more
semanticscholar +1 more source
Second-Order Asymptotics for the Classical Capacity of Image-Additive Quantum Channels
, 2015 We study non-asymptotic fundamental limits for transmitting classical information over memoryless quantum channels, i.e. we investigate the amount of classical information that can be transmitted when a quantum channel is used a finite number of times ...
Tan, Vincent Y. F., Tomamichel, Marco
core +1 more source
The decreasing property of relative entropy and the strong superadditivity of quantum channels [PDF]
Quantum Information and Computation 7 (2009) 594-609, 2008 We argue that a fundamental (conjectured) property of memoryless quantum channels, namely the strong superadditivity, is intimately related to the decreasing property of the quantum relative entropy. Using the latter we first give, for a wide class of input states, an estimation of the output entropy for phase damping channels and some Weyl quantum ...
arxiv