Results 101 to 110 of about 304,578 (296)

Momentum space CFT correlators for Hamiltonian truncation

Journal of High Energy Physics, 2020
We consider Lorentzian CFT Wightman functions in momentum space. In particular, we derive a set of reference formulas for computing two- and three-point functions, restricting our attention to three-point functions where the middle operator ...
Nikhil Anand, Zuhair U. Khandker, Matthew T. Walters   +2 more
doaj   +1 more source

Quantum transport in chains with noisy off-diagonal couplings

, 2005
We present a model for conductivity and energy diffusion in a linear chain described by a quadratic Hamiltonian with Gaussian noise. We show that when the correlation matrix is diagonal, the noise-averaged Liouville-von Neumann equation governing the ...
Andrey Pereverzev, Eric R. Bittner, Fermi E., Haug H., Ovchinnikov A.   +4 more
core   +1 more source

Transient Antiskyrmion‐Mediated Topological Transitions in Isotropic Magnets

Advanced Science, EarlyView.
A transient antiskyrmion‐mediated pathway that drives repeated stripe‐to‐skyrmion transitions is revealed, producing a net increase in topological charge in isotropic Dzyaloshinskii–Moriya interaction films. Experiments and simulations identify the antiskyrmion as a metastable excitation, enabling stochastic bitstream generation for probabilistic ...
Bingqian Dai, Tianyi Wang, Albert Lee, Shijie Xu, Zhongjian Bian, Xinyue Zhu, Puyang Huang, Aadi Chaturvedi, Yaochen Li, Yang Cheng, Qingyuan Shu, Haoran He, Hanshen Huang, Lixuan Tai, Kin Wong, Jinbo Yang, Anjan Soumyanarayanan, Zhaochu Luo, Kang L. Wang   +18 more
wiley   +1 more source

Bi-Hamiltonian ODEs with matrix variables

, 2011
We consider a special class of linear and quadratic Poisson brackets related to ODE systems with matrix variables. We investigate general properties of such brackets, present an example of a compatible pair of quadratic and linear brackets and found the corresponding hierarchy of integrable models, which generalizes the two-component Manakov's matrix ...
Odesskii, Alexander, Rubtsov, Vladimir, Sokolov, Vladimir   +2 more
openaire   +2 more sources

A Quantum Framework for Protein Binding‐Site Structure Prediction on Utility‐Level Quantum Processors

Advanced Science, EarlyView.
This study presents a hybrid quantum‐classical framework for accurate prediction of protein structures on utility‐level quantum processors. We evaluate the practical application of the Variational Quantum Eigen‐solver (VQE) in protein structure prediction and demonstrate its superiority over state‐of‐the‐art deep learning methods in molecular docking ...
Yuqi Zhang, Yuxin Yang, William Martin, Kingsten Lin, Zixu Wang, Cheng‐Chang Lu, Weiwen Jiang, Ruth Nussinov, Joseph Loscalzo, Qiang Guan, Feixiong Cheng   +10 more
wiley   +1 more source

A selection rule for transitions in PT-symmetric quantum theory

AIP Advances, 2017
Carl Bender and collaborators have developed a quantum theory governed by Hamiltonians that are PT-symmetric rather than Hermitian. To implement this theory, the inner product was redefined to guarantee positive norms of eigenstates of the Hamiltonian ...
Lawrence R. Mead, David Garfinkle
doaj   +1 more source

Reduction of the molecular hamiltonian matrix using quantum community detection. [PDF]

Sci Rep, 2021
Mniszewski SM, Dub PA, Tretiak S, Anisimov PM, Zhang Y, Negre CFA.   +5 more
europepmc   +1 more source

A Discrete Version of the Inverse Scattering Problem and the J-matrix Method

, 2004
The problem of the Hamiltonian matrix in the oscillator and Laguerre basis construction from the S-matrix is treated in the context of the algebraic analogue of the Marchenko method.Comment: 11 pages.
Baz A I, Broad J T, Broad J T, Chabanov V M, Chadan K, Ghanbari K, Gladwell G M L, Heller E J, S A Zaytsev, Shirokov A M, Shirokov A M, Zaitsev S A, Zaitsev S A, Zaitsev S A, Zaitsev S A, Zaitsev S A, Zakhariev B N   +16 more
core   +2 more sources

Mapping Charge Interactions in Intrinsically Disordered Proteins

Advanced Science, EarlyView.
This study presents analytical models to predict intrachain distances in intrinsically disordered proteins (IDPs), accounting for charge patterning, salt concentration, and electrostatic effects. Validated against single‐molecule FRET data, a minimal‐parameter polymer model is identified that captures key interactions and chain dimensions. These models
Michael Phillips, Andrea Holla, Magdalena Wojtas, Aritra Chowdhury, Andrea Sottini, Sebastian L. B. König, Natalie Mutter, Nick Lamb, Jonathan Huihui, Monika Lopko, Andrea Soranno, Daniel Nettels, Andrzej Ożyhar, Benjamin Schuler, Kingshuk Ghosh   +14 more
wiley   +1 more source

The solvability conditions for the inverse eigenvalue problem of normal skew J-Hamiltonian matrices

Journal of Inequalities and Applications, 2018
Let J∈Rn×n $J \in{\mathbb{R}}^{n\times n}$ be a normal matrix such that J2=−In $J^{2}=-I_{n}$, where In $I_{n}$ is an n-by-n identity matrix. In (S. Gigola, L. Lebtahi, N. Thome in Appl. Math. Lett. 48:36–40, 2015) it was introduced that a matrix A∈Cn×n $
Jia Zhao, Jieming Zhang
doaj   +1 more source