Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Pasterski, Sabrina"'
Autor:
Jørstad, Eivind, Pasterski, Sabrina
We revisit the extrapolate dictionary for massless scattering in flat spacetime and identify a soft contribution that is typically dropped from the saddle point approximation. We show how to consistently regulate the extrapolation to include both the
Externí odkaz:
http://arxiv.org/abs/2410.20296
Autor:
Asadi, Vahid R., Kuroiwa, Kohdai, Leung, Debbie, May, Alex, Pasterski, Sabrina, Waddell, Chris
The conditional disclosure of secrets (CDS) primitive is among the simplest cryptographic settings in which to study the relationship between communication, randomness, and security. CDS involves two parties, Alice and Bob, who do not communicate but
Externí odkaz:
http://arxiv.org/abs/2404.14491
We show how to encode the radiative degrees of freedom in $4$-dimensional asymptotically AdS spacetimes, using the boundary Cotton and stress tensors. Background radiation leads to a reduction of the asymptotic symmetry group, in contrast to asymptot
Externí odkaz:
http://arxiv.org/abs/2404.02146
We start by defining two-particle operators that appear in celestial CFT. We then show how to compute their OPE coefficients with the known single-particle operators at tree level from multiparticle factorization channels, focusing on the leading con
Externí odkaz:
http://arxiv.org/abs/2402.18798
Autor:
Pasterski, Sabrina
The Celestial Holography program encompasses recent efforts to understand the flat space hologram in terms of a CFT living on the celestial sphere. A key development instigating these efforts came from understanding how soft limits of scattering enco
Externí odkaz:
http://arxiv.org/abs/2310.04932
We study features of celestial CFT correlation functions when the bulk theory is itself a CFT. We show that conformal inversions in the bulk map boost eigenstates to shadow transformed boost eigenstates. This is demonstrated explicitly for the wavefu
Externí odkaz:
http://arxiv.org/abs/2310.02186
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
Autor:
Hu, Yangrui, Pasterski, Sabrina
This paper presents a systematic cataloging of the generators of celestial symmetries on phase space. Starting from the celestial OPEs, we first show how to extract a representation of the general-spin analog of the wedge subalgebra of $w_{1+\infty}$
Externí odkaz:
http://arxiv.org/abs/2307.16801
We start by constructing a conformally covariant improvement of the celestial light transform which keeps track of the mixing between incoming and outgoing states under finite Lorentz transformations in $\mathbb{R}^{2,2}$. We then compute generic 2,
Externí odkaz:
http://arxiv.org/abs/2212.00962
Autor:
Banerjee, Shamik, Pasterski, Sabrina
We revisit the standard construction of the celestial stress tensor as a shadow of the subleading conformally soft graviton. In its original formulation there is an obstruction to reproducing the expected TT OPE in the double soft limit. We propose a
Externí odkaz:
http://arxiv.org/abs/2212.00257