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A geometric torsion (GT) underlying a $2$-form in a $(4$$+$$1)$-dimensional $U(1)$ gauge theory is revisited with a renewed perspective for a non-perturbation (NP) gravity in $d$$=$$4$. In the context we provide evidences to a holographic…

高能物理 - 理论 · 物理学 2020-04-22 Rohit K. Gupta , Supriya Kar , R. Nitish

The general model of higher derivative (HD) gravity is considered. The search of brane-world cosmology in such theory is presented when bulk is d5 AdS and boundary is spherical, hyperbolic or flat (single) brane. It is found the wide range…

高能物理 - 理论 · 物理学 2009-10-31 Shin'ichi Nojiri , Sergei D. Odintsov

d5 dilatonic gravity action with surface counterterms motivated by AdS/CFT correspondence and with contributions of brane quantum CFTs is considered around AdS-like bulk. The effective equations of motion are constructed. They admit two…

高能物理 - 理论 · 物理学 2009-09-17 Shin'ichi Nojiri , Sergei D. Odintsov

We investigate an emergent gravity in $(4+1)$ dimensions underlying a geometric torsion ${\cal H}_3$ in $1.5$ order formulation. We show that an emergent pair-symmetric $4$th order curvature tensor underlying a NS field theory governs a…

高能物理 - 理论 · 物理学 2016-11-23 Supriya Kar

The AdS/CFT correspondence allows us to map a dynamical cosmology to a dual quantum field theory living on the boundary of spacetime. Specifically, we study a five-dimensional model cosmology in type IIB supergravity, where the dual theory…

高能物理 - 理论 · 物理学 2013-05-30 Ben Craps , Thomas Hertog , Neil Turok

d5 dilatonic gravity action with surface counterterms motivated by AdS/CFT correspondence and with contributions of brane quantum CFTs is considered around AdS-like bulk. The effective equations of motion are constructed. They admit two…

高能物理 - 理论 · 物理学 2009-09-17 S. Nojiri , S. D. Odintsov , K. E. Osetrin

We revisit an emergent gravity scenario in $(4+1)$ dimensions underlying a propagating geometric torsion ${\cal H}_3$ with a renewed interest. We show that a pair-symmetric $4$th order curvature tensor is sourced by a two-form Neveu-Schwarz…

高能物理 - 理论 · 物理学 2021-02-24 R. Nitish , Supriya Kar

We extend the holographic duality between 3d pure gravity and the 2d Ising CFT proposed in [Phys. Rev. D 85 (2012) 024032] to CFTs with boundaries. Besides the usual asymptotic boundary, the dual bulk spacetime now has a real cutoff, on…

高能物理 - 理论 · 物理学 2021-06-08 Andreas Karch , Zhu-Xi Luo , Hao-Yu Sun

The role of bulk matter quantum effects (via the corresponding effective potential discussed on the example of conformal scalar) and of boundary matter quantum effects (via the conformal anomaly induced effective action) is considered in…

高能物理 - 理论 · 物理学 2009-09-17 Shin'ichi Nojiri , Sergei D. Odintsov , Sergio Zerbini

We investigate emergent gravity extending the paradigm of the AdS/CFT correspondence. The emergent graviton is associated to the (dynamical) expectation value of the energy-momentum tensor. We derive the general effective description of…

高能物理 - 理论 · 物理学 2023-02-28 Panos Betzios , Elias Kiritsis , Vasilis Niarchos

General Relativity can be formulated in terms of a spatially Weyl invariant gauge theory called Shape Dynamics. Using this formulation, we establish a "bulk/bulk" duality between gravity and a Weyl invariant theory on spacelike Cauchy…

广义相对论与量子宇宙学 · 物理学 2013-01-23 Henrique Gomes , Sean Gryb , Tim Koslowski , Flavio Mercati

The 5d dilatonic gravity action with surface counterterms, motivated by the AdS/CFT correspondence and with contributions of brane quantum CFTs is considered with an AdS-like bulk. The role of quantum brane CFT consists in inducing…

广义相对论与量子宇宙学 · 物理学 2007-05-23 K. E. Osetrin

We investigate an effective torsion curvature in a second order formalism underlying a two form world-volume dynamics in a $D_5$-brane. In particular, we consider the two form in presence of a background (open string) metric in a $U(1)$…

高能物理 - 理论 · 物理学 2015-06-22 Richa Kapoor , Supriya Kar , Deobrat Singh

In the same base setup as Sakharov's induced gravity, we investigate emergence of gravity in effective quantum field theories (QFT), with particular emphasis on the gauge sector in which gauge bosons acquire anomalous masses in proportion…

广义相对论与量子宇宙学 · 物理学 2021-02-24 Durmus Demir

In this note we clarify the dictionary between pure quantum gravity on the bulk in the presence of a cosmological constant and a CFT on the boundary. We show for instance that there is a general correspondence between quantum gravity…

高能物理 - 理论 · 物理学 2008-04-18 Laurent Freidel

We derive the bosonic sector of the AdS$_3$/CFT$_2$ correspondence from the $(1+1)$-dimensional Gross-Neveu (GN) model with $N$ fermion species and a local quartic interaction, with no stringy or geometric input. A Bargmann-Wigner fusion…

高能物理 - 理论 · 物理学 2026-05-13 Laith H. Haddad

We present a dual 5D braneworld picture of a recently suggested model for a microcanonical description of a 4D cosmology driven by a conformal field theory with a large number of quantum fields. The 5D side of the duality relation is…

高能物理 - 理论 · 物理学 2014-11-20 A. O. Barvinsky , C. Deffayet , A. Yu. Kamenshchik

The creation of 4d de Sitter (inflationary) boundary gluing two d5 de Sitter bulks on the classical as well as on quantum level (with account of brane QFT via corresponding trace anomaly induced effective action) is discussed. Quantum…

高能物理 - 理论 · 物理学 2009-11-07 Shin'ichi Nojiri , Sergei D. Odintsov

5d dilatonic gravity (bosonic sector of gauged supergravity) with non-trivial bulk potential and with surface terms (boundary cosmological constant and trace anomaly induced effective action for brane quantum matter) is considered. For…

高能物理 - 理论 · 物理学 2009-09-17 Shin'ichi Nojiri , Octavio Obregon , Sergei D. Odintsov

One of the few cases of AdS/CFT where both sides of the duality are under good control relates tensionless $k=1$ strings on AdS$_3$ to a two-dimensional symmetric product CFT. Building on prior observations, we propose an exact duality…

高能物理 - 理论 · 物理学 2025-01-14 Andrea Dei , Bob Knighton , Kiarash Naderi , Savdeep Sethi
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