Results 41 to 50 of about 13,552 (291)

Quantum Heat Engines with Complex Working Media, Complete Otto Cycles and Heuristics

open access: yesEntropy, 2021
Quantum thermal machines make use of non-classical thermodynamic resources, one of which include interactions between elements of the quantum working medium.
Ramandeep S. Johal, Venu Mehta
doaj   +1 more source

Optimal common resource in majorization-based resource theories

open access: yesNew Journal of Physics, 2019
We address the problem of finding the optimal common resource for an arbitrary family of target states in quantum resource theories based on majorization, that is, theories whose conversion law between resources is determined by a majorization ...
G M Bosyk   +4 more
doaj   +1 more source

Entropic measures of joint uncertainty: effects of lack of majorization [PDF]

open access: yes, 2015
We compute R\'enyi entropies for the statistics of a noisy simultaneous observation of two complementary observables in two-dimensional quantum systems. The relative amount of uncertainty between two states depends on the uncertainty measure used.
Bosyk, Gustavo Martín   +2 more
core   +4 more sources

Estimations of divergence measures for majorization inequalities via Peano’s representation of Hermite’s polynomial [PDF]

open access: yesArab Journal of Mathematical Sciences
PurposeIn this paper applications to information theory are presented. Generalized majorization theorem is presented in term of different entropies and divergences. So that obtained results are generalized and comprehensive.Design/methodology/approachThe
Awais Rasheed   +3 more
doaj   +1 more source

On an upper bound for Sherman’s inequality

open access: yesJournal of Inequalities and Applications, 2016
Considering a weighted relation of majorization, Sherman obtained a useful generalization of the classical majorization inequality. The aim of this paper is to extend Sherman’s inequality to convex functions of higher order.
Slavica Ivelić Bradanović   +2 more
doaj   +1 more source

On Majorization Uncertainty Relations in the Presence of a Minimal Length

open access: yesPhysics, 2022
The emergence of a minimal length at the Planck scale is consistent with modern developments in quantum gravity. This is taken into account by transforming the Heisenberg uncertainty principle into the generalized uncertainty principle.
Alexey E. Rastegin
doaj   +1 more source

Majorization in Quantum Adiabatic Algorithms

open access: yes, 2006
The majorization theory has been applied to analyze the mathematical structure of quantum algorithms. An empirical conclusion by numerical simulations obtained in the previous literature indicates that step-by-step majorization seems to appear ...
Ji, Zhengfeng   +2 more
core   +1 more source

Bounding the HL-index of a graph: a majorization approach

open access: yesJournal of Inequalities and Applications, 2016
In mathematical chemistry, the median eigenvalues of the adjacency matrix of a molecular graph are strictly related to orbital energies and molecular orbitals.
Gian Paolo Clemente, Alessandra Cornaro
doaj   +1 more source

Class of finite-dimensional matrices with diagonals that majorize their spectrum

open access: yesSpecial Matrices, 2023
We define a special class of finite-dimensional matrices for which the diagonal majorizes the spectrum. This is the first class of matrices known to have this property, although the reverse majorization (i.e., the spectrum majorizing the diagonal) was ...
Uhlmann Jeffrey
doaj   +1 more source

What is the probability of a thermodynamical transition? [PDF]

open access: yes, 2016
If the second law of thermodynamics forbids a transition from one state to another, then it is still possible to make the transition happen by using a sufficient amount of work.
Alhambra, Álvaro M.   +2 more
core   +3 more sources

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