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6 papers · 2 filters
Special contact Wilson loops
Andrei Mikhailov
Wilson loops in supersymmetric Yang-Mills theory correspond at strong coupling to extremal surfaces in . We study a class of extremal surfaces known as special…
Schwinger-Keldysh Propagators from AdS/CFT Correspondence
C. P. Herzog, D. T. Son
We demonstrate how to compute real-time Green's functions for a class of finite temperature field theories from their AdS gravity duals. In particular, we reproduce the two-by-two…
The Quantum Hall Effect on R^4
Henriette Elvang, Joseph Polchinski
Zhang and Hu have formulated an SU(2) quantum Hall system on the four-sphere, with interesting three-dimensional boundary dynamics including gapless states of nonzero helicity. In…
Nonspherical Giant Gravitons and Matrix Theory
Andrei Mikhailov
We consider the plane wave limit of the nonspherical giant gravitons. We compute the Poisson brackets of the coordinate functions and find a nonlinear algebra. We show that this al…
Adventures in de Sitter space
Raphael Bousso
This is my contribution to the Festschrift honoring Stephen Hawking on his 60th birthday. Twenty-five years ago, Gibbons and Hawking laid out the semi-classical properties of de Si…
Moyal Formulation of Witten's Star Product in the Fermionic Ghost Sector
Theodore G. Erler
In this paper, we recast the fermionic ghost sector of Witten's open bosonic string field theory in the language of noncommutative field theory. In particular, following the method…