Results 111 to 120 of about 2,287,877 (286)
Oikos, EarlyView.Seasonality in temperate ecosystems shapes species phenology, influencing interactions and food web structure. Variations in species richness and biomass affect trophic interaction strength, a crucial factor for community stability, which can be assessed through energy fluxes – an essential indicator of ecosystem function.
Simon Bazin +4 more
wiley +1 more source
Non-Hermitian Random Matrix Ensembles
, 2009 This is a concise review of the complex, real and quaternion real Ginibre random matrix ensembles and their elliptic deformations. Eigenvalue correlations are exactly reduced to two-point kernels and discussed in the strongly and weakly non-Hermitian limits of large matrix size.
Khoruzhenko, B. A., Sommers, H. -J.
openaire +2 more sources
Simulating Quantum State Transfer Between Distributed Devices Using Noisy Interconnects
Advanced Quantum Technologies, EarlyView.Noisy connections challenge future networked quantum computers. This work presents a practical method to address this by simulating an ideal state transfer over noisy interconnects. The approach reduces the high sampling cost of previous methods, an advantage that improves as interconnect quality gets better.
Marvin Bechtold +3 more
wiley +1 more source
Some New Algebraic Method Developments in the Characterization of Matrix Equalities
AxiomsAlgebraic expressions and equalities can be constructed arbitrarily in a given algebraic framework according to the operational rules provided, and thus it is a prominent and necessary task in mathematics and applications to construct, classify, and ...
Yongge Tian
doaj +1 more source
Hermitian adjacency matrix of the second kind for mixed graphs [PDF]
Discrete Mathematics, 2021 Shuchao Li, Yuantian Yu
semanticscholar +1 more source
Digital Twin Simulations Toolbox of the Nitrogen‐Vacancy Center in Diamond
Advanced Quantum Technologies, EarlyView.The Nitrogen‐vacancy (NV) center in diamond is a key platform within quantum technologies. This work introduces a Python based digital‐twin of the NV, where the spin dynamics of the system is simulated without relying on commonly used approximations, such as the adoption of rotating frame. The digital‐twin is validated through three different examples,
Lucas Tsunaki +3 more
wiley +1 more source
Pseudo-Hermitian Chebyshev differential matrix and non-Hermitian Liouville quantum mechanics
Journal of Physics A: Mathematical and TheoreticalAbstract The spectral collocation method (SCM) exhibits a clear superiority in solving ordinary and partial differential equations compared to conventional techniques, such as finite difference and finite element methods. This makes SCM a powerful tool for addressing the Schrödinger-like equations with boundary conditions in physics ...
Chen Lan, Wei Li, Huifang Geng
openaire +2 more sources
Loss Behavior in Supervised Learning With Entangled States
Advanced Quantum Technologies, EarlyView.Entanglement in training samples supports quantum supervised learning algorithm in obtaining solutions of low generalization error. Using analytical as well as numerical methods, this work shows that the positive effect of entanglement on model after training has negative consequences for the trainability of the model itself, while showing the ...
Alexander Mandl +4 more
wiley +1 more source
A fast, preconditioned conjugate gradient Toeplitz solver [PDF]
A simple factorization is given of an arbitrary hermitian, positive definite matrix in which the factors are well-conditioned, hermitian, and positive definite.
Pan, Victor, Schrieber, Robert
core +1 more source
The Optimization Problems of a Quadratic Hermitian Matrix-valued Function with the Constraint of Matrix Equations [PDF]
, 2023 Yawen Lan, Yongxin Yuan
openalex +1 more source