Results 81 to 90 of about 13,431 (178)

An Algebraic Approach to Light–Matter Interactions

open access: yesAdvanced Physics Research, Volume 4, Issue 1, January 2025.
This is a review of an algebraic approach to light–matter interactions that is theoretically powerful and computationally friendly. Theoretical expressions can be developed and manipulated conveniently thanks to the generality of the basis on which the approach rests, and a compact notation.
Ivan Fernandez‐Corbaton
wiley   +1 more source

Unitarily invariant norms related to semi-finite factors

open access: yesStudia Mathematica, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Junsheng Fang, D. Hadwin
semanticscholar   +3 more sources

Schur-multiplicative maps preserving unitarily invariant norms

open access: yesLinear Algebra and its Applications, 2008
Let \(\|{\cdot}\| \) be a given unitary invariant norm on rectangular \(m\)-by-\(n\) matrices, and let \(A\circ B\) be the Schur (=\,entrywise) product of matrices. The author classifies \(\|{\cdot}\| \)-isometries \(\Phi:M_{m\times n}\to M_{m\times n}\) which are Schur multiplicative, that is, which satisfy \(\| \Phi(A)\| =\| A\| \) and \(\Phi(A\circ ...
openaire   +1 more source

On some inequalities related to Heinz means for unitarily invariant norms

open access: yesJournal of Mathematical Inequalities, 2022
Wushu ng Liu, Xing ai Hu, Jianp ng Shi
semanticscholar   +1 more source

Matrix semigroups determined by unitarily invariant norms

open access: yesLinear Algebra and its Applications, 1974
AbstractThe purpose of this paper is to study the structure of the matrix semigroups defined by unitarily invariant norms and, equivalently, those defined by arbitrary ellipsoidal norms. Among other things it is found that when an element of such a semigroup has a semi-inverse, the semi-inverse is unique, and, in the case of unitarily invariant norms ...
openaire   +2 more sources

Scaling Limits of Lattice Quantum Fields by Wavelets. [PDF]

open access: yesCommun Math Phys, 2021
Morinelli V   +3 more
europepmc   +1 more source

Efficient Unitary Designs with a System-Size Independent Number of Non-Clifford Gates. [PDF]

open access: yesCommun Math Phys, 2023
Haferkamp J   +5 more
europepmc   +1 more source

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