Results 41 to 50 of about 1,405 (79)
Noise‐Tailored Constructions for Spin Wigner Function Kernels
Advanced Physics Research, Volume 3, Issue 6, June 2024.This work explores the parameterization of spin Wigner functions to efficiently represent the effects of probabilistic unitary noise on a quantum state. Block diagonalization of the noise operator algebra is used to reduce the required number of parameters while maintaining the Stratonovich–Weyl conditions for the representation.
Michael Hanks, Soovin Lee, M.S. Kim
wiley +1 more source
Randomized Rounding for the Largest Simplex Problem
, 2015 The maximum volume $j$-simplex problem asks to compute the $j$-dimensional simplex of maximum volume inside the convex hull of a given set of $n$ points in $\mathbb{Q}^d$. We give a deterministic approximation algorithm for this problem which achieves an
Ghouila-Houri A. +5 more
core +1 more source
Skew Howe duality and limit shapes of Young diagrams
Journal of the London Mathematical Society, Volume 109, Issue 1, January 2024.Abstract We consider the skew Howe duality for the action of certain dual pairs of Lie groups (G1,G2)$(G_1, G_2)$ on the exterior algebra ⋀(Cn⊗Ck)$\bigwedge (\mathbb {C}^{n} \otimes \mathbb {C}^{k})$ as a probability measure on Young diagrams by the decomposition into the sum of irreducible representations. We prove a combinatorial version of this skew
Anton Nazarov +2 more
wiley +1 more source
Capacity Bounds via Operator Space Methods
, 2017 Quantum capacity, as the ultimate transmission rate of quantum communication, is characterized by regularized coherent information. In this work, we reformulate approximations of the quantum capacity by operator space norms and give both upper and lower ...
Gao, Li +2 more
core +1 more source
Additivity and multiplicativity properties of some Gaussian channels for Gaussian inputs
, 2005 We prove multiplicativity of maximal output $p$ norm of classical noise channels and thermal noise channels of arbitrary modes for all $p>1$ under the assumption that the input signal states are Gaussian states.
A. Marshall +10 more
core +1 more source
The Schur-Horn theorem for operators with three point spectrum [PDF]
, 2012 We characterize the set of diagonals of the unitary orbit of a self-adjoint operator with three points in the spectrum. Our result gives a Schur-Horn theorem for operators with three point spectrum analogous to Kadison's result for orthogonal ...
Jasper, John
core
On Schur Convexity of Some Symmetric Functions
Journal of Inequalities and Applications, 2010 For and , the symmetric function is defined as , where are positive integers. In this paper, the Schur convexity, Schur multiplicative convexity, and Schur harmonic convexity of are discussed.
Chu Yu-Ming, Xia Wei-Feng
doaj
Quantum Horn's lemma, finite heat baths, and the third law of thermodynamics
, 2018 Interactions of quantum systems with their environment play a crucial role in resource-theoretic approaches to thermodynamics in the microscopic regime.
Mueller, Markus P., Scharlau, Jakob
core +2 more sources
Measurement of market (industry) concentration based on value validity. [PDF]
PLoS One, 2022 Kvålseth TO.
europepmc +1 more source
Optimal vaccination: various (counter) intuitive examples. [PDF]
J Math Biol, 2023 Delmas JF, Dronnier D, Zitt PA.
europepmc +1 more source