Zobrazeno 1 - 10
of 273
pro vyhledávání: '"Tolley, Andrew J."'
The class of Galileon scalar fields theories encapsulate the Vainshtein screening mechanism which is characteristic of a large range of infrared modified theories of gravity. Such theories can lead to testable departures from General Relativity throu
Externí odkaz:
http://arxiv.org/abs/2402.05898
The Galileon theory is a prototypical effective field theory that incorporates the Vainshtein screening mechanism--a feature that arises in some extensions of General Relativity, such as massive gravity. The Vainshtein effect requires that the theory
Externí odkaz:
http://arxiv.org/abs/2402.05897
Relativistic causality constrains the $S$-matrix both through its analyticity, and by imposing lower bounds on the scattering time delay. These bounds are easiest to determine for spacetimes which admit either a timelike or null Killing vector. We re
Externí odkaz:
http://arxiv.org/abs/2309.04534
We present a formulation of ghost-free massive gravity with flat reference metric that exhibits the full non-linear constraint algebraically, in a way that can be directly implemented for numerical simulations. Motivated by the presence of higher ord
Externí odkaz:
http://arxiv.org/abs/2302.04876
Autor:
Piazza, Federico, Tolley, Andrew J.
A central property of a classical geometry is that the geodesic distance between two events is \emph{additive}. When considering quantum fluctuations in the metric or a quantum or statistical superposition of different spacetimes, additivity is gener
Externí odkaz:
http://arxiv.org/abs/2212.06156
We consider positivity constraints applicable to the Effective Field Theory (EFT) of gravity in arbitrary dimensions. By considering scattering of indefinite initial and final states, we highlight the existence of a gravitational scattering amplitude
Externí odkaz:
http://arxiv.org/abs/2212.04975
Publikováno v:
Phys. Rev. D 106, 105018 (2022)
Physical principles such as unitarity, causality, and locality can constrain the space of consistent effective field theories (EFTs) by imposing two-sided bounds on the allowed values of Wilson coefficients. In this paper, we consider the bounds that
Externí odkaz:
http://arxiv.org/abs/2207.03491
The Galileon scalar field theory is a prototypical example of an effective field theory that exhibits the Vainshtein screening mechanism, which is incorporated into many extensions to Einstein gravity. The Galileon describes the helicity zero mode of
Externí odkaz:
http://arxiv.org/abs/2205.05697
Autor:
Arun, K. G., Belgacem, Enis, Benkel, Robert, Bernard, Laura, Berti, Emanuele, Bertone, Gianfranco, Besancon, Marc, Blas, Diego, Böhmer, Christian G., Brito, Richard, Calcagni, Gianluca, Cardenas-Avendaño, Alejandro, Clough, Katy, Crisostomi, Marco, De Luca, Valerio, Doneva, Daniela, Escoffier, Stephanie, Ezquiaga, Jose Maria, Ferreira, Pedro G., Fleury, Pierre, Foffa, Stefano, Franciolini, Gabriele, Frusciante, Noemi, García-Bellido, Juan, Herdeiro, Carlos, Hertog, Thomas, Hinderer, Tanja, Jetzer, Philippe, Lombriser, Lucas, Maggio, Elisa, Maggiore, Michele, Mancarella, Michele, Maselli, Andrea, Nampalliwar, Sourabh, Nichols, David, Okounkova, Maria, Pani, Paolo, Paschalidis, Vasileios, Raccanelli, Alvise, Randall, Lisa, Renaux-Petel, Sébastien, Riotto, Antonio, Ruiz, Milton, Saffer, Alexander, Sakellariadou, Mairi, Saltas, Ippocratis D., Sathyaprakash, B. S., Shao, Lijing, Sopuerta, Carlos F., Sotiriou, Thomas P., Stergioulas, Nikolaos, Tamanini, Nicola, Vernizzi, Filippo, Witek, Helvi, Wu, Kinwah, Yagi, Kent, Yazadjiev, Stoytcho, Yunes, Nicolas, Zilhao, Miguel, Afshordi, Niayesh, Angonin, Marie-Christine, Baibhav, Vishal, Barausse, Enrico, Barreiro, Tiago, Bartolo, Nicola, Bellomo, Nicola, Ben-Dayan, Ido, Bergshoeff, Eric A., Bernuzzi, Sebastiano, Bertacca, Daniele, Bhagwat, Swetha, Bonga, Béatrice, Burko, Lior M., Compere, Geoffrey, Cusin, Giulia, da Silva, Antonio, Das, Saurya, de Rham, Claudia, Destounis, Kyriakos, Dimastrogiovanni, Ema, Duque, Francisco, Easther, Richard, Farmer, Hontas, Fasiello, Matteo, Fisenko, Stanislav, Fransen, Kwinten, Frauendiener, Jörg, Gair, Jonathan, Gergely, Laszlo Arpad, Gerosa, Davide, Gualtieri, Leonardo, Han, Wen-Biao, Hees, Aurelien, Helfer, Thomas, Hennig, Jörg, Jenkins, Alexander C., Kajfasz, Eric, Kaloper, Nemanja, Karas, Vladimir, Kavanagh, Bradley J., Klioner, Sergei A., Koushiappas, Savvas M., Lagos, Macarena, Poncin-Lafitte, Christophe Le, Lobo, Francisco S. N., Markakis, Charalampos, Martin-Moruno, Prado, Martins, C. J. A. P., Matarrese, Sabino, Mayerson, Daniel R., Mimoso, José P., Noller, Johannes, Nunes, Nelson J., Oliveri, Roberto, Orlando, Giorgio, Pappas, George, Pikovski, Igor, Pilo, Luigi, Podolsky, Jiri, Pratten, Geraint, Prokopec, Tomislav, Qi, Hong, Rastgoo, Saeed, Ricciardone, Angelo, Rollo, Rocco, Rubiera-Garcia, Diego, Sergijenko, Olga, Shapiro, Stuart, Shoemaker, Deirdre, Spallicci, Alessandro, Stashko, Oleksandr, Stein, Leo C., Tasinato, Gianmassimo, Tolley, Andrew J., Vagenas, Elias C., Vandoren, Stefan, Vernieri, Daniele, Vicente, Rodrigo, Wiseman, Toby, Zhdanov, Valery I., Zumalacárregui, Miguel
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. In this white paper, the
Externí odkaz:
http://arxiv.org/abs/2205.01597
Fundamental principles of local quantum field theory or of quantum gravity can enforce consistency requirements on the space of consistent low-energy effective field theories. We survey the various techniques that have been used to put UV constraints
Externí odkaz:
http://arxiv.org/abs/2203.06805