Covariant Closed String Coherent States
arXiv:1006.2559 · doi:10.1103/PhysRevLett.106.081602
Abstract
We give the first construction of covariant coherent closed string states, which may be identified with fundamental cosmic strings. We outline the requirements for a string state to describe a cosmic string, and using DDF operators provide an explicit and simple map that relates three different descriptions: classical strings, lightcone gauge quantum states and covariant vertex operators. The naive construction leads to covariant vertex operators whose existence requires a lightlike compactification of spacetime. When the lightlike compactified states in the underlying Hilbert space are projected out the resulting coherent states have a classical interpretation and are in one-to-one correspondence with arbitrary classical closed string loops.
4 pages
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- String Memories ... openly retold
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- Weak chaos and mixed dynamics in the string S-matrix
- String Thermodynamics In and Out of Equilibrium: Boltzmann Equations and Random Walks
- Duality and Decay of Macroscopic F-Strings
- Handle Operators in String Theory
- Construction of Quantum Target Space from World-Sheet States using Quantum State Tomography