Results 71 to 80 of about 473,597 (273)

Structure Preserving Parallel Algorithms for Solving the Bethe-Salpeter Eigenvalue Problem

, 2015
The Bethe-Salpeter eigenvalue problem is a dense structured eigenvalue problem arising from discretized Bethe-Salpeter equation in the context of computing exciton energies and states.
Anderson, Bai, Bai, Benner, Benner, Bhatia, Bischof, Blackford, Byers, Chao Yang, Dancoff, Dhillon, Fahey, Faßbender, Felipe H. da Jornada, Golub, Granat, Grüning, Grüning, Jack Deslippe, Kressner, Lin, Luszczek, Mackey, Mackey, Marek, Mehl, Meiyue Shao, Puschnig, Rocca, Rohlfing, Salpeter, Steven G. Louie, Tamm, Ward, Ward, Willems, Xu, Xu, Zimmermann   +39 more
core   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

Advanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas‐Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio Coronado, José J. Baldoví, Brian M. Andersen, Isabel Guillamón, Hermann Suderow   +16 more
wiley   +1 more source

Signal and Noise in Financial Correlation Matrices

, 2004
Using Random Matrix Theory one can derive exact relations between the eigenvalue spectrum of the covariance matrix and the eigenvalue spectrum of its estimator (experimentally measured correlation matrix).
Burda, Gallucio, Jerzy Jurkiewicz, Laloux, Marcenko, Markowitz, Pafka, Plerou, Silverstein, Silverstein, Zdzisław Burda   +10 more
core   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

Advanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias, Maxwell J. Munford, Frederik C.H. Masure, Richard J. van Arkel, Reece N Oosterbeek   +4 more
wiley   +1 more source

Rotating Stall Inception Prediction Using an Eigenvalue-Based Global Instability Analysis Method

International Journal of Turbomachinery, Propulsion and Power
The accurate prediction of rotating stall inception is critical for determining the stable operating regime of a compressor. Among the two widely accepted pathways to stall, namely, modal and spike, the former is plausibly believed to originate from a ...
Shenren Xu, Caijia Yuan, Chen He, Dongming Cao, Dakun Sun, Carlos Martel, Huihao Chen, Dingxi Wang   +7 more
doaj   +1 more source

Weinberg Eigenvalues and Pairing with Low-Momentum Potentials

, 2007
The nonperturbative nature of nucleon-nucleon interactions evolved to low momentum has recently been investigated in free space and at finite density using Weinberg eigenvalues as a diagnostic.
Abrikosov, Barbieri, Bogner, Bogner, Bogner, Bogner, Bogner, Bogner, Bogner, Bogner, Dickhoff, Entem, Epelbaum, Fetter, Glöckle, Hebeler, Heiselberg, Khodel, Lombardo, R.J. Furnstahl, Roth, S. Ramanan, S.K. Bogner, Schrieffer, Schulze, Schwenk, Schwenk, Schwenk, Weinberg, Wiringa   +29 more
core   +1 more source

Photonics of Topological Magnetic Textures

Advanced Optical Materials, EarlyView.
Localized noncollinear magetic textures imprint their geometry and topology onto traversing photonic fields endowing them with orbital angular‐momentum, chirality, and magnetoelectric densities. Abstract Topological textures in magnetically ordered materials are an important case studies for fundamental research with promising applications in data ...
Vakhtang Jandieri, Ramaz Khomeriki, Daniel Erni, Nicolas Tsagareli, Qian Li, Douglas H. Werner, Jamal Berakdar   +6 more
wiley   +1 more source

CoMFA, CoMSIA and Eigenvalue Analysis on Dibenzodioxepinone and Dibenzodioxocinone Derivatives as Cholesteryl Ester Transfer Protein Inhibitors

Molecules, 2008
: CoMFA, CoMSIA and eigenvalue analysis (EVA) were performed to study the structural features of 61 diverse dibenzodioxepinone and dibenzodioxocinone analogues to probe cholesteryl ester transfer protein (CETP) inhibitory activity.
Mao-sheng Cheng, Jian Wang, Jin-hong Ren, Yang Liu, Peng-fei Bu, Dong-mei Zhao, Xu-qiong Xiong   +6 more
doaj   +1 more source

Cavity approach to the first eigenvalue problem in a family of symmetric random sparse matrices

, 2010
A methodology to analyze the properties of the first (largest) eigenvalue and its eigenvector is developed for large symmetric random sparse matrices utilizing the cavity method of statistical mechanics. Under a tree approximation, which is plausible for
Biroli G, Dotzenko V S, Erdös P, Fischer K H, Hisanao Takahashi, Kühn R, Langville A, Marchenko V A, Mardia K V, Mehta M L, Mézard M, Nagao T, Osamu Watanabe, Parisi G, Pearl J, Semerjian G, Yoshiyuki Kabashima   +16 more
core   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source