Zobrazeno 1 - 10
of 709
pro vyhledávání: '"Ball, Adam"'
Autor:
Ball, Adam, Secondo, Ray, Fomra, Dhruv, Wu, Jingwei, Saha, Samprity, Agrawal, Amit, Lezec, Henri, Kinsey, Nathaniel
Epsilon-near-zero (ENZ) materials have shown strong refractive nonlinearities that can be fast in an absolute sense. While continuing to advance fundamental science, such as time varying interactions, the community is still searching for an applicati
Externí odkaz:
http://arxiv.org/abs/2408.00577
Autor:
Ball, Adam
In this review we discuss currents in celestial CFT and the consistency of their naive symmetry algebras. In particular we study in detail the Jacobi identity and the double residue condition for soft insertions, hard momentum space insertions, and h
Externí odkaz:
http://arxiv.org/abs/2407.13558
Previous work on black hole partition functions and entanglement entropy suggests the existence of "edge" degrees of freedom living on the (stretched) horizon. We identify a local and "shrinkable" boundary condition on the stretched horizon that give
Externí odkaz:
http://arxiv.org/abs/2403.14542
In this paper we study the simplifying effects of supersymmetry on celestial OPEs at both tree and loop level. We find at tree level that theories with unbroken supersymmetry around a stable vacuum have celestial soft current algebras satisfying the
Externí odkaz:
http://arxiv.org/abs/2311.01364
We compute scattering amplitudes involving one massive scalar and two, three, or four gravitons. We show that when the conformal dimension of the massive scalar is set to zero, the resulting celestial correlators depend {\it only} on the coordinates
Externí odkaz:
http://arxiv.org/abs/2310.00520
The purpose of this paper is to study the holomorphic multicollinear limit of (celestial) amplitudes and use it to further investigate the double residue condition for (hard celestial) amplitudes and the celestial operator product expansion. We first
Externí odkaz:
http://arxiv.org/abs/2309.16602
We show that the Killing tensor of the Kerr spacetime has an analogue in the $\sqrt{\rm Kerr}$ gauge theory solution related to it by the classical double copy. This hidden symmetry of $\sqrt{\rm Kerr}$ leads to an additional constant of motion for c
Externí odkaz:
http://arxiv.org/abs/2307.01338
Autor:
Vermeulen, Nathalie, Espinosa, Daniel, Ball, Adam, Ballato, John, Boucaud, Philippe, Boudebs, Georges, Campos, Cecilia L. A. V., Dragic, Peter, Gomes, Anderson S. L., Huttunen, Mikko J., Kinsey, Nathaniel, Mildren, Rich, Neshev, Dragomir, Padilha, Lazaro, Pu, Minhao, Secondo, Ray, Tokunaga, Eiji, Turchinovich, Dmitry, Yan, Jingshi, Yvind, Kresten, Dolgaleva, Ksenia, Van Stryland, Eric W.
Publikováno v:
J. Phys. Photonics, 5, 035001 (2023)
In its 60 years of existence, the field of nonlinear optics has gained momentum especially over the past two decades thanks to major breakthroughs in material science and technology. In this article, we present a new set of data tables listing nonlin
Externí odkaz:
http://arxiv.org/abs/2301.06138
Autor:
Ball, Adam
We show the equivalence of several different tests of the Jacobi identity for celestial currents at tree level, in particular finding a simple, practical condition on hard momentum space 4-point amplitudes in any EFT. Along the way we clarify the rol
Externí odkaz:
http://arxiv.org/abs/2211.09151
Autor:
Ball, Adam, Secondo, Ray, Diroll, Benjamin T., Fomra, Dhruv, Ding, Kai, Avrutin, Vitaly, Ozgur, Umit, Kinsey, Nathaniel
Strong nonlinear materials have been sought after for decades for applications in telecommunications, sensing, and quantum optics. Gallium-doped zinc oxide is a II-VI transparent conducting oxide that shows promising nonlinearities similar to indium
Externí odkaz:
http://arxiv.org/abs/2211.04306