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Title: Dynamical AdS strings across horizons

We examine the nonlinear classical dynamics of a fundamental string in anti-deSitter spacetime. The string is dual to the flux tube between an external quark-antiquark pair in $N = 4$ super Yang-Mills theory. We perturb the string by shaking the endpoints and compute its time evolution numerically. We find that with sufficiently strong perturbations the string continues extending and plunges into the Poincare´ horizon. In the evolution, effective horizons are also dynamically created on the string worldsheet. The quark and antiquark are thus causally disconnected, and the string transitions to two straight strings. The forces acting on the endpoints vanish with a power law whose slope depends on the perturbations. Lastly, the condition for this transition to occur is that energy injection exceeds the static energy between the quark-antiquark pair.
 [1] ;  [2]
  1. Univ. of Colorado, Boulder, CO (United States)
  2. Keio Univ., Yokohama (Japan)
Publication Date:
OSTI Identifier:
Grant/Contract Number:
SC0008132; 15K17658
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2016; Journal Issue: 3; Journal ID: ISSN 1029-8479
Springer Berlin
Research Org:
Univ. of Colorado, Boulder, CO (United States)
Sponsoring Org:
USDOE Office of Science (SC); Japan Society for the Promotion of Science (JSPS)
Country of Publication:
United States
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS AdS-CFT Correspondence; Brane Dynamics in Gauge Theories; Gaugegravity correspondence