Results 41 to 50 of about 41,978 (137)

Mach's principle: Exact frame-dragging via gravitomagnetism in perturbed Friedmann-Robertson-Walker universes with $K = (\pm 1, 0)$

, 2009
We show that the dragging of the axis directions of local inertial frames by a weighted average of the energy currents in the universe is exact for all linear perturbations of any Friedmann-Robertson-Walker (FRW) universe with K = (+1, -1, 0) and of ...
A. Lichnerowicz, A. R. Edmonds, C. W. Misner, Christoph Schmid, D. Lynden-Bell, D. Lynden-Bell, E. Mach, E. Mach, E. Mach, G. de Rham, G. de Rham, G. de Rham, H. Thirring, H. Thirring, H. Thirring, I. Ciufolini, J. Jost, J. D. Jackson, J. D. Jackson, M. Berger, M. E. Rose, O. Heaviside, R. Durrer, R. Weitzenböck, S. Weinberg, T. Frankel, T. J. McCormack   +26 more
core   +1 more source

Overcomplete steerable pyramid filters and rotation invariance [PDF]

, 1994
A given (overcomplete) discrete oriented pyramid may be converted into a steerable pyramid by interpolation. We present a technique for deriving the optimal interpolation functions (otherwise called 'steering coefficients').
Anderson, C. H., Belongie, S., Goodman, R., Greenspan, H., Perona, P., Rakshit, S.   +5 more
core   +4 more sources

Relational Motivation for Conformal Operator Ordering in Quantum Cosmology

, 2009
Operator-ordering in quantum cosmology is a major as-yet unsettled ambiguity with not only formal but also physical consequences. We determine the Lagrangian origin of the conformal invariance that underlies the conformal operator-ordering choice in ...
Anderson, Edward
core   +1 more source

Adjoint string breaking in 4d SU(2) Yang-Mills theory [PDF]

, 1999
We compute the static potential of adjoint sources in SU(2) Yang-Mills theory in four dimensions by numerical Monte Carlo simulations. Following a recent calculation in 2+1 dimensions, we employ a variational approach involving string and gluelump ...
de Forcrand, Ph., Philipsen, O.
core   +2 more sources

Loop Equation and Wilson line Correlators in Non-commutative Gauge Theories [PDF]

, 2001
We investigate Schwinger-Dyson equations for correlators of Wilson line operators in non-commutative gauge theories. We point out that, unlike what happens for closed Wilson loops, the joining term survives in the planar equations.
Abou-Zeid, Alvarez-Gaumé, Ambjorn, Ambjorn, Ambjorn, Andreev, Aoki, Ardalan, Ardalan, Avinash Dhar, Bars, Cheung, Chu, Connes, Cornalba, Das, Das, Das, Das, Dasgupta, Dhar, Dhar, Dhar, Dhar, Douglas, Drukker, Fatollahi, Fukuma, Garcia-Compean, Gopakumar, Gopakumar, Gross, Harvey, Hashimoto, Ishibashi, Ishibashi, Ishibashi, Jatkar, Kraus, Li, Liu, Liu, Maldacena, Mandal, Minwalla, Nekrasov, Okawa, Okawa, Okuyama, Polyakov, Polyakov, Polyakov, Rey, Schomerus, Seiberg, Seiberg, Seiberg, Witten, Yoshihisa Kitazawa   +58 more
core   +2 more sources

Sabatier‐Adjusted d‐Band Centers of Scalable Asymmetric Iron Sites toward Dynamic Nonradical Network for Fast Mineralization with Low‐Amount Oxidant

Advanced Science, EarlyView.
Asymmetric iron single‐atom catalysts with Sabatier‐adjusted d‐band centers overcome the inherent limitations of peroxymonosulfate (PMS) activation by establishing a synergistic nonradical pathway network, achieving exceptional pollutant mineralization (≈85%) at only one‐tenth conventional PMS dosage.
Yue Chen, Xunheng Jiang, Zhiyu Pan, Zhenjie Li, Chaohuang Chen, Can Li, Chenghui Luo, Shengkun Zhang, Daohui Lin, Xinhua Xu, Jiang Xu   +10 more
wiley   +1 more source

Supergravity, AdS/CFT Correspondence and Matrix Models [PDF]

, 1999
The recent developments towards the possible non-perturbative formulation of string/M theory using supersymmetric Yang-Mills matrix models (SYMs) are discussed.
Yoneya, Tamiaki
core   +4 more sources

Feature Selection for Machine Learning‐Driven Accelerated Discovery and Optimization in Emerging Photovoltaics: A Review

Advanced Intelligent Discovery, EarlyView.
Feature selection combined with machine learning and high‐throughput experimentation enables efficient handling of high‐dimensional datasets in emerging photovoltaics. This approach accelerates material discovery, improves process optimization, and strengthens stability prediction, while overcoming challenges in data quality and model scalability to ...
Jiyun Zhang, Jiayi Tan, Qizhen Song, Tian Du, Jens Hauch, Christoph J. Brabec   +5 more
wiley   +1 more source

Isospectral deformations of the Dirac operator [PDF]

, 2013
We give more details about an integrable system in which the Dirac operator D=d+d^* on a finite simple graph G or Riemannian manifold M is deformed using a Hamiltonian system D'=[B,h(D)] with B=d-d^* + i b. The deformed operator D(t) = d(t) + b(t) + d(t)^
Knill, Oliver
core  

Interpretable Machine Learning for Solvent‐Dependent Carrier Mobility in Solution‐Processed Organic Thin Films

Advanced Intelligent Discovery, EarlyView.
This work establishes a correlation between solvent properties and the charge transport performance of solution‐processed organic thin films through interpretable machine learning. Strong dispersion interactions (δD), moderate hydrogen bonding (δH), closely matching and compatible with the solute (quadruple thiophene), and a small molar volume (MolVol)
Tianhao Tan, Lian Duan, Dong Wang
wiley   +1 more source