Results 81 to 90 of about 240,834 (310)

Renormalization of Long-wavelength Solution of Einstein Equation

, 1999
Using the renormalization group method, we improved the first order solution of the long-wavelength expansion of the Einstein equation. By assuming that the renormalization group transformation has the property of Lie group, we can regularize the secular
Nambu, Yasusada, Yamaguchi, Yoshiyuki Y.
core   +1 more source

Functional renormalization group for Luttinger liquids with impurities [PDF]

, 2004
We improve the recently developed functional renormalization group (fRG) for impurities and boundaries in Luttinger liquids by including renormalization of the two-particle interaction, in addition to renormalization of the impurity potential.
I. E. Dzyaloshinskii, I. E. Dzyaloshinskii, J. W. Negele, J. Zinn-Justin, K. Schönhammer, M. Salmhofer, S. Andergassen, T. Enss, T. Giamarchi, T. Giamarchi, U. Schollwöck, V. Meden, W. H. Press, W. Metzner   +13 more
core   +1 more source

Spin‐Split Edge States in Metal‐Supported Graphene Nanoislands Obtained by CVD

Advanced Materials, EarlyView.
Combining STM measurements and ab‐initio calculations, we show that zig‐zag edges in graphene nanoislands grown on Ni(111) by CVD retrieve their spin‐polarized edge states after intercalation of a few monolayers of Au. ABSTRACT Spin‐split states localized on zigzag edges have been predicted for different free‐standing graphene nanostructures.
Michele Gastaldo, Masoud Mansouri, Carlos Garcia‐Fernandez, Daniel Sánchez‐Portal, Aran Garcia‐Lekue, Gustavo Ceballos, Aitor Mugarza   +6 more
wiley   +1 more source

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

Advanced Photonics Research, EarlyView.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida, Koichi Okamoto, Takuya Matsuda, Hajime Ishihara   +3 more
wiley   +1 more source

Renormalization group approach to matrix models via noncommutative space

, 2012
We develop a new renormalization group approach to the large-N limit of matrix models. It has been proposed that a procedure, in which a matrix model of size (N-1) \times (N-1) is obtained by integrating out one row and column of an N \times N matrix ...
B Wit de, C Das, C-S Chu, DA Varshalovich, Dan Tomino, DJ Gross, E Brézin, E Brézin, F David, H Kawai, H Steinacker, J Distler, J Hoppe, J Madore, JM Maldacena, K Wilson, M Panero, M Raamsdonk Van, MR Douglas, MR Douglas, MR Douglas, N Ishibashi, R Dijkgraaf, RJ Szabo, S Higuchi, S Higuchi, S Higuchi, S Higuchi, S Iso, S Minwalla, S Vaidya, Shoichi Kawamoto, T Aoyama, T Azuma, T Banks, T Eguchi, T Ishii, T Kuroki, Tsunehide Kuroki, V Knizhnik, X Martin   +40 more
core   +1 more source

Non-renormalization theorems of Supersymmetric QED in the Wess-Zumino gauge [PDF]

, 2001
The non-renormalization theorem of chiral vertices and the generalized non-renormalization theorem of the photon self energy are derived in SQED on the basis of algebraic renormalization.
Adler, Adler, Bardeen, Batalin, Batalin, Batalin, Becchi, Becchi, Becchi, Bell, Clark, D. Stöckinger, E. Kraus, Flume, Fujikawa, Giradello, Grisaru, Grisaru, Hollik, Hollik, Häußling, Häußling, Jegerlehner, Konishi, Lucchesi, Maggiore, Novikov, Novikov, Piguet, Shifman, Wess, White   +31 more
core   +2 more sources

A simple construction of the Anderson operator via its quadratic form in dimensions two and three

Comptes Rendus. Mathématique
We provide a simple construction of the Anderson operator in dimensions two and three. This is done through its quadratic form. We rely on an exponential transform instead of the regularity structures or paracontrolled calculus which are usually used for
Mouzard, Antoine, Ouhabaz, El Maati
doaj   +1 more source

Entropy and Its Discontents: A Note on Definitions

Entropy, 2014
The routine definitions of Shannon entropy for both discrete and continuous probability laws show inconsistencies that make them not reciprocally coherent.
Nicola Cufaro Petroni
doaj   +1 more source

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

A Clarification on Quantum‐Metric‐Induced Nonlinear Transport

Advanced Science, EarlyView.
How does the quantum metric truly govern the nonlinear transport? The longstanding theoretical discrepancies are resolved in quantum‐metric‐induced nonlinear transport and the correct intrinsic nonlinear conductivity is identified. Furthermore, a toy model is engineered to suppress the competing effects, uniquely highlighting the role of quantum metric
Xiao‐Bin Qiang, Tianyu Liu, Zi‐Xuan Gao, Hai‐Zhou Lu, X. C. Xie   +4 more
wiley   +1 more source