Surprises in a Classic Boundary-Layer Problem

Autor: William A. Clark, Mario W. Gomes, Arnaldo Rodriguez-Gonzalez, Leo C. Stein, Steven H. Strogatz

Publikováno v: SIAM Review. 65:291-315

We revisit a textbook example of a singularly perturbed nonlinear boundary-value problem. Unexpectedly, it shows a wealth of phenomena that seem to have been overlooked previously, including a pitchfork bifurcation in the number of solutions as one v

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25be50123fd94759bc83cbe9c18ebf55
https://doi.org/10.1137/21m1436087

Fixing the BMS frame of numerical relativity waveforms with BMS charges

Autor: Keefe Mitman, Leo C. Stein, Michael Boyle, Nils Deppe, François Hébert, Lawrence E. Kidder, Jordan Moxon, Mark A. Scheel, Saul A. Teukolsky, William Throwe, Nils L. Vu

Publikováno v: Physical Review D

The Bondi-van der Burg-Metzner-Sachs (BMS) group, which uniquely describes the symmetries of asymptotic infinity and therefore of the gravitational waves that propagate there, has become increasingly important for accurate modeling of waveforms. In p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ff369b03e1c545599a5032a52fb64c5
http://arxiv.org/abs/2208.04356

New horizons for fundamental physics with LISA

Autor: K. G. Arun, Enis Belgacem, Robert Benkel, Laura Bernard, Emanuele Berti, Gianfranco Bertone, Marc Besancon, Diego Blas, Christian G. Böhmer, Richard Brito, Gianluca Calcagni, Alejandro Cardenas-Avendaño, Katy Clough, Marco Crisostomi, Valerio De Luca, Daniela Doneva, Stephanie Escoffier, José María Ezquiaga, Pedro G. Ferreira, Pierre Fleury, Stefano Foffa, Gabriele Franciolini, Noemi Frusciante, Juan García-Bellido, Carlos Herdeiro, Thomas Hertog, Tanja Hinderer, Philippe Jetzer, Lucas Lombriser, Elisa Maggio, Michele Maggiore, Michele Mancarella, Andrea Maselli, Sourabh Nampalliwar, David Nichols, Maria Okounkova, Paolo Pani, Vasileios Paschalidis, Alvise Raccanelli, Lisa Randall, Sébastien Renaux-Petel, Antonio Riotto, Milton Ruiz, Alexander Saffer, Mairi Sakellariadou, Ippocratis D. Saltas, B. S. Sathyaprakash, Lijing Shao, Carlos F. Sopuerta, Thomas P. Sotiriou, Nikolaos Stergioulas, Nicola Tamanini, Filippo Vernizzi, Helvi Witek, Kinwah Wu, Kent Yagi, Stoytcho Yazadjiev, Nicolás Yunes, Miguel Zilhão, Niayesh Afshordi, Marie-Christine Angonin, Vishal Baibhav, Enrico Barausse, Tiago Barreiro, Nicola Bartolo, Nicola Bellomo, Ido Ben-Dayan, Eric A. Bergshoeff, Sebastiano Bernuzzi, Daniele Bertacca, Swetha Bhagwat, Béatrice Bonga, Lior M. Burko, Geoffrey Compére, Giulia Cusin, Antonio da Silva, Saurya Das, Claudia de Rham, Kyriakos Destounis, Ema Dimastrogiovanni, Francisco Duque, Richard Easther, Hontas Farmer, Matteo Fasiello, Stanislav Fisenko, Kwinten Fransen, Jörg Frauendiener, Jonathan Gair, László Árpád Gergely, Davide Gerosa, Leonardo Gualtieri, Wen-Biao Han, Aurelien Hees, Thomas Helfer, Jörg Hennig, Alexander C. Jenkins, Eric Kajfasz, Nemanja Kaloper, Vladimír Karas, Bradley J. Kavanagh, Sergei A. Klioner, Savvas M. Koushiappas, Macarena Lagos, Christophe Le Poncin-Lafitte, Francisco S. N. Lobo, Charalampos Markakis, Prado Martín-Moruno, C. J. A. P. Martins, Sabino Matarrese, Daniel R. Mayerson, José P. Mimoso, Johannes Noller, Nelson J. Nunes, Roberto Oliveri, Giorgio Orlando, George Pappas, Igor Pikovski, Luigi Pilo, Jiří Podolský, Geraint Pratten, Tomislav Prokopec, Hong Qi, Saeed Rastgoo, Angelo Ricciardone, Rocco Rollo, Diego Rubiera-Garcia, Olga Sergijenko, Stuart Shapiro, Deirdre Shoemaker, Alessandro Spallicci, Oleksandr Stashko, Leo C. Stein, Gianmassimo Tasinato, Andrew J. Tolley, Elias C. Vagenas, Stefan Vandoren, Daniele Vernieri, Rodrigo Vicente, Toby Wiseman, Valery I. Zhdanov, Miguel Zumalacárregui

Publikováno v: Living Reviews in Relativity, 25(1), 1. Albert Einstein Institut
Living Reviews in Relativity
Living Rev.Rel.
Living Rev.Rel., 2022, 25 (1), pp.4. ⟨10.1007/s41114-022-00036-9⟩
E-Prints Complutense. Archivo Institucional de la UCM
instname
Arun, K. G. Ruiz Meneses, Milton Javier 2022 New horizons for fundamental physics with LISA Living Reviews In Relativity 25 4
Living Reviews in Relativity, 25, 1-148
Living Reviews in Relativity, 25(1):4. Albert Einstein Institut
Living Reviews in Relativity, 25, 1, pp. 1-148

K. G. Arun et al.
The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders about the fundamental theory of nature at play in the extreme gravity regime, where the gravitational interaction is both strong and dynamical. I

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ee753d4ce141fae6dca78bfdba343d8
https://orca.cardiff.ac.uk/id/eprint/150937/1/41114_2022_Article_36.pdf

Numerical renormalization-group-based approach to secular perturbation theory

Autor: José T. Gálvez Ghersi, Leo C. Stein

Publikováno v: Physical review. E. 104(3-1)

Perturbation theory is a crucial tool for many physical systems, when exact solutions are not available, or nonperturbative numerical solutions are intractable. Naive perturbation theory often fails on long timescales, leading to secularly growing so

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22cec24a8c56028fdee1f04ebd778a3e
https://pubmed.ncbi.nlm.nih.gov/34654117

Fixing the BMS Frame of Numerical Relativity Waveforms

Autor: William Throwe, Mark A. Scheel, Dante A. B. Iozzo, Nils Deppe, Leo C. Stein, Keefe Mitman, Jordan Moxon, Lawrence E. Kidder, Michael Boyle, Harald P. Pfeiffer, Saul A. Teukolsky, Neev Khera

Publikováno v: Physical Review D

Understanding the Bondi-Metzner-Sachs (BMS) frame of the gravitational waves produced by numerical relativity is crucial for ensuring that analyses on such waveforms are performed properly. It is also important that models are built from waveforms in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9cbc4b26d9e10c3d3c7816d5d4b9e89
http://arxiv.org/abs/2105.02300