2015/12/29 by Takaaki Ishii, Keiju Murata
Physics and Astronomy · #Black Holes and Theoretical Physics #Classical mechanics #Cosmology and Gravitation Theories #Flux tube #Horizon #Magnetic flux #Mathematical physics #Non-critical string theory #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Quark #Spacetime #String (physics) #String field theory #String theory #Theoretical physics #Worldsheet #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1007/jhep03(2016)035
29 pages, 15 figures
arxiv created 2015/12/29 · openalex publication_date 2016/03/01 · arxiv updated 2016/03/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We examine the nonlinear classical dynamics of a fundamental string in anti-de Sitter 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 Poincaré 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. The condition for this transition to occur is that energy injection exceeds the static energy between the quark-antiquark pair.