Towards a resolution of the cosmological singularity in non-local higher derivative theories of gravity

T Biswas, T Koivisto, A Mazumdar - Journal of Cosmology and …, 2010 - iopscience.iop.org
One of the greatest problems of standard cosmology is the Big Bang singularity. Previously it
has been shown that non-local ghostfree higher-derivative modifications of Einstein gravity …

Consistent higher derivative gravitational theories with stable de Sitter and anti–de Sitter backgrounds

T Biswas, AS Koshelev, A Mazumdar - Physical Review D, 2017 - APS
In this paper we provide the criteria for any generally covariant, parity preserving, and
torsion-free theory of gravity to possess a stable de Sitter (dS) or anti–de Sitter (AdS) …

p-Adic AdS/CFT

SS Gubser, J Knaute, S Parikh, A Samberg… - … in Mathematical Physics, 2017 - Springer
We construct ap-adic analog to AdS/CFT, where an unramified extension of the p-adic
numbers replaces Euclidean space as the boundary and a version of the Bruhat–Tits tree …

Dynamics with infinitely many derivatives: the initial value problem

N Barnaby, N Kamran - Journal of High Energy Physics, 2008 - iopscience.iop.org
Differential equations of infinite order are an increasingly important class of equations in
theoretical physics. Such equations are ubiquitous in string field theory and have recently …

[HTML][HTML] Towards LHC physics with nonlocal Standard Model

T Biswas, N Okada - Nuclear Physics B, 2015 - Elsevier
We take a few steps towards constructing a string-inspired nonlocal extension of the
Standard Model. We start by illustrating how quantum loop calculations can be performed in …

[HTML][HTML] Muon g− 2 anomaly and non-locality

A Capolupo, G Lambiase, A Quaranta - Physics Letters B, 2022 - Elsevier
We show that the discrepancy between the observed value of the muon anomalous moment
and the standard model prediction can be explained in the framework of nonlocal theories …

p-adic Inflation

N Barnaby, T Biswas, JM Cline - Journal of High Energy Physics, 2007 - iopscience.iop.org
We construct approximate inflationary solutions rolling away from the unstable maximum of
p-adic string theory, a nonlocal theory with derivatives of all orders. Novel features include …

[HTML][HTML] p-Adic open string amplitudes with Chan-Paton factors coupled to a constant B-field

H García-Compeán, EY López, WA Zúñiga-Galindo - Nuclear Physics B, 2020 - Elsevier
We establish rigorously the regularization of the p-adic open string amplitudes, with Chan-
Paton rules and a constant B-field, introduced by Ghoshal and Kawano. In this study we use …

[HTML][HTML] An introduction to the theory of local zeta functions from scratch

E León-Cardenal, WA Zúñiga-Galindo - Revista Integración, 2019 - scielo.org.co
This survey article aims to provide an introduction to the theory of local zeta functions in the
p-adic framework for beginners. We also give an extensive guide to the current literature on …

Thermodynamics and cosmological constant of non-local field theories from p-adic strings

T Biswas, JAR Cembranos, JI Kapusta - Journal of High Energy Physics, 2010 - Springer
We develop the thermodynamics of field theories characterized by non-local propagators.
We analyze the partition function and main thermodynamic properties arising from …