Results 41 to 50 of about 156,184 (217)

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

Combining the in-medium similarity renormalization group with the density matrix renormalization group: Shell structure and information entropy

Physics Letters B, 2023
We propose a novel many-body framework combining the density matrix renormalization group (DMRG) with the valence-space (VS) formulation of the in-medium similarity renormalization group.
A. Tichai, S. Knecht, A.T. Kruppa, Ö. Legeza, C.P. Moca, A. Schwenk, M.A. Werner, G. Zarand   +7 more
doaj   +1 more source

Quark Confinement and the Renormalization Group

, 2010
Recent approaches to quark confinement are reviewed, with an emphasis on their connection to renormalization group methods. Basic concepts related to confinement are introduced: the string tension, Wilson loops and Polyakov lines, string breaking, string
Migdal A. A., Migdal A. A., Tomboulis T. E.   +2 more
core   +1 more source

Variational Numerical Renormalization Group: Bridging the gap between NRG and Density Matrix Renormalization Group [PDF]

, 2012
The numerical renormalization group (NRG) is rephrased as a variational method with the cost function given by the sum of all the energies of the effective low-energy Hamiltonian. This allows to systematically improve the spectrum obtained by NRG through
Pizorn, Iztok, Verstraete, Frank
core   +2 more sources

Surface Passivation of HgTe Nanocrystals Enabling EG/2 Open‐Circuit Voltage and Their Coupling to Dielectric Cavity for Narrow Detection

Advanced Materials, EarlyView.
This article explores how the integration of a thin shell, combined with optimized surface chemistry, enables the design of photodiodes based on short‐wave infrared HgTe nanocrystals. These photodiodes achieve an open‐circuit voltage greater than half the optical bandgap, which drastically reduces dark current. The article also explores the integration
Albin Colle, Clement Gureghian, Dario Mastrippolito, Mariarosa Cavallo, Jiho Roh, Marco Paye, Tommaso Gemo, Diogo Almeida, Adrien Khalili, Yoann Prado, Xavier Lafosse, Sandrine Ithurria, Mathieu G. Silly, Pavel Dudin, James K. Utterback, José Avila, Debora Pierucci, Emmanuel Lhuillier   +17 more
wiley   +1 more source

Exact renormalization group in Batalin-Vilkovisky theory

Journal of High Energy Physics, 2018
In this paper, inspired by the Costello’s seminal work [11], we present a general formulation of exact renormalization group (RG) within the Batalin-Vilkovisky (BV) quantization scheme.
Roberto Zucchini
doaj   +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

Renormalization Group Approach to Einstein Equation in Cosmology [PDF]

, 1997
The renormalization group method has been adapted to the analysis of the long-time behavior of non-linear partial differential equation and has demonstrated its power in the study of critical phenomena of gravitational collapse.
Akio Hosoya, D. Hochberg, E. R. Harrison, H. Bondi, J. Bricmont, J. F. Barbero G., K. Tomita, K. Tomita, K. Tomita, K. Tomita, L. Y. Chen, M. B. Ribeiro, M. Carfora, M. W. Choptuik, Osamu Iguchi, P. H. Coleman, P. S. Wesson, R. C. Tolman, T. Goldman, T. Koike,, Tatsuhiko Koike, Ya. B. Zel’dovichi   +21 more
core   +2 more sources

Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo

Advanced Materials Interfaces, EarlyView.
Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan, Hrishabh Singh, Sahil Kulkarni, Hong Huy Tran, James M. Kikkawa, Daeyeon Lee, Ravi Radhakrishnan, Edward Steager, Hyun Koo, Kathleen Stebe   +9 more
wiley   +1 more source

The Renormalization Group and Singular Perturbations: Multiple-Scales, Boundary Layers and Reductive Perturbation Theory

, 1995
Perturbative renormalization group theory is developed as a unified tool for global asymptotic analysis. With numerous examples, we illustrate its application to ordinary differential equation problems involving multiple scales, boundary layers with ...
A. C. Newell, A. J. Roberts, C. M. Bender, D. J. Amit, E. J. Hinch, E. Stueckelberg, G. C. Paquette, G. Green, G. I. Barenblatt, G. Paquette, J. A. Murdock, J. Bricmont, J. Bricmont, J. Carr, J. Carr, J. Swift, J. Zinn-Justin, K. Fujimura, K. G. Wilson, K. G. Wilson, K. Wilson, L. D. Landau, L.-Y. Chen, L.-Y. Chen, L.-Y. Chen, L.-Y. Chen, L.-Y. Chen, L.-Y. Chen, Lin-Yuan Chen, M. C. Cross, M. Frasca, M. Gell-Mann, N. D. Goldenfeld, N. Goldenfeld, N. Goldenfeld, N. Goldenfeld, N. Goldenfeld, N. Goldenfeld, N. N. Bogoliubov, N. N. Bogoliubov, N. N. Bogoliubov, Nigel Goldenfeld, R. E. Langer, R. E. Langer, R. E. Langer, S. L. Woodruff, T. Taniuti, Y. Kuramoto, Y. Oono, Y. Oono   +49 more
core   +1 more source