Scalar speed limits and cosmology: Acceleration from D-cceleration
- E. Silverstein, D. Tong
- PhysicsPhysical Review D
- 23 October 2003
Causality on the gravity side of the AdS/CFT correspondence restricts motion on the moduli space of the N = 4 super Yang Mills theory by imposing a speed limit on how fast the scalar field may roll.…
DBI in the sky
- M. Alishahiha, E. Silverstein, D. Tong
- Physics
- 13 April 2004
We analyze the spectrum of density perturbations generated in models of the recently discovered ''D-cceleration'' mechanism of inflation. In this scenario, strong coupling quantum field theoretic…
Vortices, instantons and branes
The purpose of this paper is to describe a relationship between the moduli space of vortices and the moduli space of instantons. We study charge vortices in Yang-Mills-Higgs theories and show that…
Towards strange metallic holography
- S. Hartnoll, J. Polchinski, E. Silverstein, D. Tong
- Physics
- 5 December 2009
We initiate a holographic model building approach to `strange metallic' phenomenology. Our model couples a neutral Lifshitz-invariant quantum critical theory, dual to a bulk gravitational background,…
NS5-Branes, T-Duality and Worldsheet Instantons
- D. Tong
- Mathematics
- 23 April 2002
The equivalence of NS5-branes and ALF spaces under T-duality is well known. However, a naive application of T-duality transforms the ALF space into a smeared NS5-brane, de-localized on the dual,…
Vortex strings and four-dimensional gauge dynamics
We study the low-energy quantum dynamics of vortex strings in the Higgs phase of = 2 supersymmetric QCD. The exact BPS spectrum of the stretched string is shown to coincide with the BPS spectrum of…
Optical conductivity with holographic lattices
- G. Horowitz, Jorge E Santos, D. Tong
- Physics
- 2 April 2012
A bstractWe add a gravitational background lattice to the simplest holographic model of matter at finite density and calculate the optical conductivity. With the lattice, the zero frequency delta…
Universal Resistivity from Holographic Massive Gravity
- Mike Blake, D. Tong
- Physics
- 22 August 2013
Massive gravity provides a holographic model for theories exhibiting mo- mentum dissipation. We provide an analytic expression for the DC conductivity. The result is universal, depending only on…
The holographic dual of AdS3 × S3 × S3 × S1
- D. Tong
- Mathematics, Physics
- 20 February 2014
A bstractWe construct the two dimensional $ \mathcal{N} $ = (0, 4) gauge theory that lives on the world volume of D1-branes and intersecting D5-branes. We conjecture that this theory flows in the…
Membranes on an orbifold.
- N. Lambert, D. Tong
- MathematicsPhysical Review Letters
- 7 April 2008
An M theory interpretation of the recently discovered N=8 supersymmetric Chern-Simons theory with SO(4) gauge symmetry is provided to describe two membranes moving in the orbifold R8/Z2.
...
...