Results 1 - 10 of 2,972

Macroscopic strings as heavy quarks in large N gauge theory and Anti-de Sitter supergravity

by Soo-jong Rey, Jung-tay Yee - PHYS. J. C22
"... Maldacena has put forward large N correspondence between superconformal field theories on the brane and anti-de Sitter supergravity in spacetime. We study some aspects of the correspondence between N = 4 superconformal gauge theory on D3-brane and maximal supergravity on adS5 × S5 by introducing mac ..."
Abstract - Cited by 508 (1 self) - Add to MetaCart
for macroscopic string in anti-de Sitter supergravity. As a by-product we clarify how Polchinski’s Dirichlet and Neumann open string boundary conditions arise. We then study non-BPS macroscopic string anti-string pair configuration as physical realization of heavy quark Wilson loop. We obtain Q ¯ Q static

NUMERICAL STUDY OF THE LOWEST ENERGY CONFIGURATIONS FOR GLOBAL STRING-ANTISTRING PAIRS

by Ajit Mohan Srivastava , 1992
"... We investigate the lowest energy configurations for string- antistring pairs at fixed separations by numerically minimizing the energy. We show that for separations smaller than a critical value, a region of false vacuum develops in the middle due to large gradient energy density. Consequently, well ..."
Abstract - Cited by 1 (0 self) - Add to MetaCart
We investigate the lowest energy configurations for string- antistring pairs at fixed separations by numerically minimizing the energy. We show that for separations smaller than a critical value, a region of false vacuum develops in the middle due to large gradient energy density. Consequently

Pictorial Structures for Object Recognition

by Pedro F. Felzenszwalb, Daniel P. Huttenlocher - IJCV , 2003
"... In this paper we present a statistical framework for modeling the appearance of objects. Our work is motivated by the pictorial structure models introduced by Fischler and Elschlager. The basic idea is to model an object by a collection of parts arranged in a deformable configuration. The appearance ..."
Abstract - Cited by 816 (15 self) - Add to MetaCart
. The appearance of each part is modeled separately, and the deformable configuration is represented by spring-like connections between pairs of parts. These models allow for qualitative descriptions of visual appearance, and are suitable for generic recognition problems. We use these models to address the problem

Tachyon condensation on the brane-antibrane system

by Ashoke Sen - JHEP , 1998
"... A coincident D-brane- anti-D-brane pair has a tachyonic mode. We present an argument showing that at the classical minimum of the tachyonic potential the negative energy density associated with the potential exactly cancels the sum of the tension of the brane and the anti-brane, thereby giving a con ..."
Abstract - Cited by 307 (10 self) - Add to MetaCart
A coincident D-brane- anti-D-brane pair has a tachyonic mode. We present an argument showing that at the classical minimum of the tachyonic potential the negative energy density associated with the potential exactly cancels the sum of the tension of the brane and the anti-brane, thereby giving a

An Approximate Max-Flow Min-Cut Theorem for Uniform Multicommodity Flow Problems with Applications to Approximation Algorithms

by Tom Leighton, Satish Rao , 1989
"... In this paper, we consider a multicommodity flow problem where for each pair of vertices, (u,v), we are required to sendf half-units of commodity (uv) from u to v and f half-units of commodity (vu) from v to u without violating capacity constraints. Our main result is an algorithm for performing th9 ..."
Abstract - Cited by 246 (12 self) - Add to MetaCart
In this paper, we consider a multicommodity flow problem where for each pair of vertices, (u,v), we are required to sendf half-units of commodity (uv) from u to v and f half-units of commodity (vu) from v to u without violating capacity constraints. Our main result is an algorithm for performing th

Efficient Matching of Pictorial Structures

by Pedro F. Felzenszwalb, Daniel P. Huttenlocher - PROC. IEEE COMPUTER VISION AND PATTERN RECOGNITION CONF. , 2000
"... A pictorial structure is a collection of parts arranged in a deformable configuration. Each part is represented using a simple appearance model and the deformable configuration is represented by spring-like connections between pairs of parts. While pictorial structures were introduced a number of ye ..."
Abstract - Cited by 208 (11 self) - Add to MetaCart
A pictorial structure is a collection of parts arranged in a deformable configuration. Each part is represented using a simple appearance model and the deformable configuration is represented by spring-like connections between pairs of parts. While pictorial structures were introduced a number

SO(32) spinors of type I and other solitons on brane-antibrane pair,” JHEP 09

by Ashoke Sen , 1998
"... We construct the SO(32) spinor state in weakly coupled type I string theory as a kink solution of the tachyon field on the D-string − anti-D-string pair and calculate its mass. We also give a description of this system in terms of an exact boundary conformal field theory and show that in this descri ..."
Abstract - Cited by 131 (10 self) - Add to MetaCart
We construct the SO(32) spinor state in weakly coupled type I string theory as a kink solution of the tachyon field on the D-string − anti-D-string pair and calculate its mass. We also give a description of this system in terms of an exact boundary conformal field theory and show

As-rigid-as-possible shape interpolation

by Marc Alexa, Daniel Cohen-or, David Levin , 2000
"... We present an object-space morphing technique that blends the interiors of given two- or three-dimensional shapes rather than their boundaries. The morph is rigid in the sense that local volumes are least-distorting as they vary from their source to target configurations. Given a boundary vertex cor ..."
Abstract - Cited by 188 (9 self) - Add to MetaCart
We present an object-space morphing technique that blends the interiors of given two- or three-dimensional shapes rather than their boundaries. The morph is rigid in the sense that local volumes are least-distorting as they vary from their source to target configurations. Given a boundary vertex

Brane/Flux Annihilation and the String Dual of a Non-Supersymmetric Field Theory

by Shamit Kachru, John Pearson, Herman Verlinde , 2006
"... We consider the dynamics of p anti-D3 branes inside the Klebanov-Strassler geometry, the deformed conifold with M units of RR 3-form flux around the S 3. We find that for p << M the system relaxes to a nonsupersymmetric NS 5-brane “giant graviton ” configuration, which is classically stable, b ..."
Abstract - Cited by 170 (18 self) - Add to MetaCart
We consider the dynamics of p anti-D3 branes inside the Klebanov-Strassler geometry, the deformed conifold with M units of RR 3-form flux around the S 3. We find that for p << M the system relaxes to a nonsupersymmetric NS 5-brane “giant graviton ” configuration, which is classically stable

Saying what you mean in dialogue: A study in conceptual and semantic co-ordination

by Simon Garrod, Anthony Anderson - Cognition , 1987
"... This paper explores how conversants co-ordinate their use and interpretation of language in a restricted context. It revolves around the analysis of the spatial descriptions which emerge during the course of 56 dialogues, elicited in the laboratory using a specially designed computer maze game. Two ..."
Abstract - Cited by 177 (9 self) - Add to MetaCart
types of analysis are reported. The first is a semantic analysis of the various types of description, which indicates how pairs of speakers develop different language schemes associated with different mental models of the maze configuration. The second analysis concerns how the communicants co
Results 1 - 10 of 2,972