Quantum broadening of k-strings from the AdS/CFT correspondence

2008/03/31 by Adi Armoni, Jefferson M. Ridgway
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #hep-lat #hep-th

paper · pdf · doi:10.1016/j.nuclphysb.2008.04.022

published as Nucl.Phys.B801:118-127,2008 · 13 pages, LaTex. v2: minor changes, references added. To appear in Nucl.Phys.B

arxiv created 2008/04/24 · openalex publication_date 2008/04/28 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We study the quantum broadening (width) of k-strings. We generalise an old result by Luscher, Munster and Weisz to the case of a k-string, by using the gauge/gravity correspondence. When the fundamental QCD-string is replaced by a bound state of k strings, the bound state is better described by a wrapped D-brane. We calculate the width of the k-string (the wrapped D-brane) in several AdS/CFT backgrounds by using a D-brane probe and find universally that omega_k ² = 1 / (2πσ_k) log R/r .

Citations

• Broadening of the QCD3 flux tube from the AdS/CFT correspondence
• All-genus calculation of Wilson loops using D-branes
• Towards the LargeNLimit of PureN<mml:mspace/>=<mml:mspace/>1Super Yang-Mills Theory
• Supergravity and a confining gauge theory: duality cascades and χSB-resolution of naked singularities