Zobrazeno 1 - 10
of 795
pro vyhledávání: '"Viñas, S."'
Autor:
Franchino-Viñas, S. A., García-Pérez, C., Mazzitelli, F. D., Pla, S., Vitagliano, V., Wainstein-Haimovichi, U.
We study the strong-field limit of a theory involving a quantum scalar field coupled to a vector background, which can be either an electromagnetic field or a non-gauge field coupled through the first derivative term. Our approach consists in obtaini
Externí odkaz:
http://arxiv.org/abs/2410.11364
Autor:
Ahmadiniaz, N., Bähtz, C., Benediktovitch, A., Bömer, C., Bocklage, L., Cowan, T. E., Edwards, J., Evans, S., Viñas, S. Franchino, Gies, H., Göde, S., Görs, J., Grenzer, J., Acosta, U. Hernandez, Heinzl, T., Hilz, P., Hippler, W., Huang, L. G., Humphries, O., Karbstein, F., Khademi, P., King, B., Kluge, T., Kohlfürst, C., Krebs, D., Laso-García, A., Lötzsch, R., Macleod, A. J., Marx-Glowna, B., Mosman, E. A., Nakatsutsumi, M., Paulus, G. G., Rahul, S. V., Randolph, L., Röhlsberger, R., Rohringer, N., Sävert, A., Sadashivaiah, S., Sauerbrey, R., Schlenvoigt, H. -P., Schmidt, S. M., Schramm, U., Schützhold, R., Schwinkendorf, J. -P., Seipt, D., Šmíd, M., Stöhlker, T., Toncian, T., Valialshchikov, M., Wipf, A., Zastrau, U., Zepf, M.
Quantum field theory predicts a nonlinear response of the vacuum to strong electromagnetic fields of macroscopic extent. This fundamental tenet has remained experimentally challenging and is yet to be tested in the laboratory. A particularly distinct
Externí odkaz:
http://arxiv.org/abs/2405.18063
Autor:
Franchino-Viñas, S. A., Mignemi, S.
We review recent discussions concerning the definition of a quantum field theory in a curved and noncommutative space, the Snyder--de Sitter space. For a quartic self-interacting scalar field in a spacetime of arbitrary dimension, we show how to pert
Externí odkaz:
http://arxiv.org/abs/2405.08934
Autor:
Franchino-Viñas, S. A.
The article by Anton E. M. van de Ven, Class. Quantum Grav. \textbf{15} (1998), is one of the fundamental references for higher-order heat kernel coefficients in curved backgrounds and with non-abelian gauge connections. In this manuscript, we point
Externí odkaz:
http://arxiv.org/abs/2401.01296
Autor:
Franchino-Viñas, S. A., García-Pérez, C., Mazzitelli, F. D., Vitagliano, V., Haimovichi, U. Wainstein
In this letter, we prove the existence of resummed expressions for the diagonal of the heat kernel and the effective action of a quantum field which interacts with a scalar or an electromagnetic background. Working in an arbitrary number of spacetime
Externí odkaz:
http://arxiv.org/abs/2312.16303
Autor:
Batista, R. Alves, Amelino-Camelia, G., Boncioli, D., Carmona, J. M., di Matteo, A., Gubitosi, G., Lobo, I., Mavromatos, N. E., Pfeifer, C., Rubiera-Garcia, D., Saridakis, E. N., Terzić, T., Vagenas, E. C., Moniz, P. Vargas, Abdalla, H., Adamo, M., Addazi, A., Anagnostopoulos, F. K., Antonelli, V., Asorey, M., Ballesteros, A., Basilakos, S., Benisty, D., Boettcher, M., Bolmont, J., Bonilla, A., Bosso, P., Bouhmadi-López, M., Burderi, L., Campoy-Ordaz, A., Caroff, S., Cerci, S., Cortes, J. L., D'Esposito, V., Das, S., de Cesare, M., Demirci, M., Di Lodovico, F., Di Salvo, T., Diego, J. M., Djordjevic, G., Domi, A., Ducobu, L., Escamilla-Rivera, C., Fabiano, G., Fernández-Silvestre, D., Franchino-Viñas, S. A., Frassino, A. M., Frattulillo, D., Garay, L. J., Gaug, M., Gergely, L. Á., Guendelman, E. I., Guetta, D., Gutierrez-Sagredo, I., He, P., Heefer, S., Jurić, T., Katori, T., Kowalski-Glikman, J., Lambiase, G., Said, J. Levi, Li, C., Li, H., Luciano, G. G., Ma, B-Q, Marciano, A., Martinez, M., Mazumdar, A., Menezes, G., Mercati, F., Minic, D., Miramonti, L., Mitsou, V. A., Mustamin, M. F., Navas, S., Olmo, G. J., Oriti, D., Övgün, A., Pantig, R. C., Parvizi, A., Pasechnik, R., Pasic, V., Petruzziello, L., Platania, A., Rasouli, S. M. M., Rastgoo, S., Relancio, J. J., Rescic, F., Reyes, M. A., Rosati, G., Sakallı, İ., Salamida, F., Sanna, A., Staicova, D., Strišković, J., Cerci, D. Sunar, Torri, M. D. C., Vigliano, A., Wagner, F., Wallet, J-C, Wojnar, A., Zarikas, V., Zhu, J., Zornoza, J. D.
The unification of quantum mechanics and general relativity has long been elusive. Only recently have empirical predictions of various possible theories of quantum gravity been put to test. The dawn of multi-messenger high-energy astrophysics has bee
Externí odkaz:
http://arxiv.org/abs/2312.00409
We review recent discussions regarding the parity-odd contribution to the trace anomaly of a chiral fermion. We pay special attention to the perturbative approach in terms of Feynman diagrams, comparing in detail the results obtained using dimensiona
Externí odkaz:
http://arxiv.org/abs/2304.08939
In this manuscript, we will discuss the notion of curved momentum space, as it arises in the discussion of noncommutative or doubly special relativity theories. We will illustrate it with two simple examples, the Casimir effect in anti-Snyder space a
Externí odkaz:
http://arxiv.org/abs/2303.08220
Autor:
Ahmadiniaz, N., Cowan, T. E., Grenzer, J., Franchino-Viñas, S., Garcia, A. Laso, Šmíd, M., Toncian, T., Trejo, M. A., Schützhold, R.
Motivated by recent experimental initiatives, such as at the Helmholtz International Beamline for Extreme Fields (HIBEF) at the European X-ray Free Electron Laser (XFEL), we calculate the birefringent scattering of x-rays at the combined field of two
Externí odkaz:
http://arxiv.org/abs/2208.14215
Autor:
Franchino-Viñas, S. A.
In this article we consider resummed expressions for the heat-kernel's trace of a Laplace operator, the latter including a potential and imposing Dirichlet semitransparent boundary conditions on a surface of codimension one in flat space. We obtain r
Externí odkaz:
http://arxiv.org/abs/2208.11979