Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Albayrak, Soner"'
In this paper, we explore correlators of a series of theories in anti-de Sitter space: we present comprehensive results for interactions involving scalars, gluons, and gravitons in multiple dimensions. One aspect of our investigation is the establish
Externí odkaz:
http://arxiv.org/abs/2312.02154
Unitarity of time evolution is one of the basic principles constraining physical processes. Its consequences in the perturbative Bunch-Davies wavefunction in cosmology have been formulated in terms of the cosmological optical theorem. In this paper,
Externí odkaz:
http://arxiv.org/abs/2305.19686
Autor:
Albayrak, Soner, Kharel, Savan
This paper presents a calculation of the four gravitons amplitude in (Anti)-de Sitter space, focusing specifically on external gravitons with positive helicity. To achieve this, we employ a generalized recursion method that involves complexifying all
Externí odkaz:
http://arxiv.org/abs/2302.09089
Publikováno v:
Phys.Rev.D 105 (2022) 8, 085008
We present the results of a conformal bootstrap study of the presumed unitary IR fixed point of quantum electrodynamics in three dimensions (QED$_3$) coupled to $N_f=4$ two-component Dirac fermions. Specifically, we study the four-point correlators o
Externí odkaz:
http://arxiv.org/abs/2112.02106
Autor:
Albayrak, Soner
In this thesis, we analyze unitary conformal field theories in three dimensional spaces by applying analytic conformal bootstrap techniques to correlation functions of non-scalar operators, in particular Majorana fermions. Via the analysis of these c
Externí odkaz:
http://arxiv.org/abs/2107.13601
We explore color-kinematic duality for tree-level AdS/CFT correlators in momentum space. We start by studying the bi-adjoint scalar in AdS at tree-level as an illustrative example. We follow this by investigating two forms of color-kinematic duality
Externí odkaz:
http://arxiv.org/abs/2012.10460
Publikováno v:
Phys. Rev. D 102, 126020 (2020)
Scattering amplitudes of massless particles in Minkowski space can be expressed in a conformal basis by Mellin transforming the momentum space amplitudes to correlation functions on the celestial sphere at null infinity. In this paper, we study celes
Externí odkaz:
http://arxiv.org/abs/2007.09338
Autor:
Albayrak, Soner, Kharel, Savan
Publikováno v:
Phys. Rev. D 103, 026004 (2021)
In this work we present a systematic study of AdS$_{d+1}$ loop amplitudes for gluons and gravitons using momentum space techniques. Inspired by the recent progress in tree level computation, we construct a differential operator that can act on a scal
Externí odkaz:
http://arxiv.org/abs/2006.12540
Publikováno v:
JHEP 09 (2020) 148
In this work we study the $6j$ symbol of the $3d$ conformal group for fermionic operators. In particular, we study 4-point functions containing two fermions and two scalars and also those with four fermions. By using weight-shifting operators and har
Externí odkaz:
http://arxiv.org/abs/2006.07374
Publikováno v:
Phys. Rev. D 101, 124043 (2020)
In this paper, we explore momentum space approach to computing scalar amplitudes in Anti-de Sitter space. We show that the algorithm derived by Arkani-Hamed, Benincasa, and Postnikov for cosmological wavefunctions can be straightforwardly adopted for
Externí odkaz:
http://arxiv.org/abs/2001.06777