Results 61 to 70 of about 16,479 (201)
Multi-state quantum simulations via model-space quantum imaginary time evolution
npj Quantum Information, 2023 We introduce the framework of model space into quantum imaginary time evolution (QITE) to enable stable estimation of ground and excited states using a quantum computer. Model-space QITE (MSQITE) propagates a model space to the exact one by retaining its
Takashi Tsuchimochi +3 more
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Maximum Entropy Approach to Massive Graph Spectrum Learning with Applications
Algorithms, 2022 We propose an alternative maximum entropy approach to learning the spectra of massive graphs. In contrast to state-of-the-art Lanczos algorithm for spectral density estimation and applications thereof, our approach does not require kernel smoothing.
Diego Granziol +5 more
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Numerical Linear Algebra with Applications, Volume 33, Issue 1, February 2026.ABSTRACT The heat equation is often used to inpaint dropped data in inpainting‐based lossy compression schemes. We propose an alternative way to numerically solve the heat equation by an extended Krylov subspace method. The method is very efficient with respect to the computation of the solution of the heat equation at large times.
Volker Grimm, Kevin Liang
wiley +1 more source
On Storm Tracks, Weather Regimes, and a Wave Breaking Recipe
AGU Advances, Volume 7, Issue 1, February 2026.Abstract The mid‐latitude atmospheric circulation is often described as a combination of low‐frequency variability, such as weather regimes (WRs) that can persist for weeks, and high‐frequency variability, including synoptic systems that shape our daily weather.
Talia Tamarin‐Brodsky +2 more
wiley +1 more source
Real time interpolation algorithm based on Lanczos kernel
Tongxin xuebao, 2017 In order to improve the timeliness and reliability of color image scaling algorithms,a high effective real-time color image scaling algorithm was proposed,which first generated the kernel look up table that could be used for whole target image based on ...
Ying GUO, Lun LI, Peng WANG
doaj +2 more sources
On computing the minimum singular value of a tensor sum
Special Matrices, 2019 Recently, the Lanczos bidiagonalization method over tensor space has been proposed for computing the maximum and minimum singular values of a tensor sum T.
Ohashi A., Sogabe T.
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Journal of Geophysical Research: Atmospheres, Volume 131, Issue 1, 16 January 2026.Abstract African easterly waves (AEWs) are an important precursor or “seed” for Atlantic tropical cyclones (TCs), with 60%–80% of major hurricanes observed to originate from AEWs. However, climate model simulations indicate that AEWs are not necessary to maintain annual Atlantic TC frequency.
Ronald H. Kouski Jr. +3 more
wiley +1 more source
Generalized Lanczos algorithm for variational quantum Monte Carlo [PDF]
Physical Review B, 2001 We show that the standard Lanczos algorithm can be efficiently implemented statistically and self consistently improved, using the stochastic reconfigurat ion method, which has been recently introduced to stabilize the Monte Carlo sign problem instability.
openaire +2 more sources
Advanced Science, Volume 13, Issue 1, 5 January 2026.Entropy derived from gray matter eigenmodes captures cortical disorganization in Alzheimer's disease. Using multimodal MRI and amyloid‐PET data, this novel structure–function coupling biomarker enables accurate classification of clinical stages, predicts Aβ burden, and stratifies mild cognitive impairment subtypes.
Yumeng Li +5 more
wiley +1 more source
Inflationary power spectrum from the Lanczos algorithm
European Physical Journal C: Particles and FieldsThe generalized Lanczos algorithm can provide a universal method for constructing a wave function under the the Hamiltonian group structure. Based on this fact, we obtain an open two-mode squeezed state as the quantum origin for the curvature ...
Ke-Hong Zhai +2 more
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