Defects, Decay, and Dissipated States

Abstract

The worldsheet renormalization group approach to tachyon condensation in string theory is reviewed. The open string case is summarized with examples, and closed string tachyon condensation on nonsupersymmetric orbifolds is examined in detail. The idea that the renormalization group dissipates the localized states associated to the defect is explored.

45 pages, 21 figures; lectures at Cargese (June 2002). v2: typos corrected, references added

References in corpus (11)

• Phases of $N=2$ Theories In Two Dimensions
• Dielectric-Branes
• Rolling Tachyon
• D-Branes And K-Theory
• D-Branes on Calabi-Yau Spaces and Their Mirrors
• Summing the Instantons: Quantum Cohomology and Mirror Symmetry in Toric Varieties
• Don't Panic! Closed String Tachyons in ALE Spacetimes
• Measuring Small Distances in N=2 Sigma Models
• On the Bound States of p- and (p+2)-Branes
• String vacuum backgrounds with covariantly constant null Killing vector and 2d quantum gravity
• On Least Action D-Branes

Cited by in corpus (12)

• Tachyon Effective Actions In Open String Theory
• Twisted Tachyon Condensation in Closed String Field Theory
• K-Theory from a physical perspective
• On Boundary Perturbations in Liouville Theory and Brane Dynamics in Noncritical String Theories
• On Solvable Time-Dependent Model and Rolling Closed String Tachyon
• Localized Tachyons and the Quantum McKay Correspondence
• On Decay of K-theory
• Decay of C/Z_n: exact supergravity solutions
• D-instantons and Closed String Tachyons in Misner Space
• The Schrodinger Wave Functional and Closed String Rolling Tachyon
• Melvin Models and Diophantine Approximation
• Proposal for the Open String Tachyon Effective Action in the Linear Dilaton Background