A Caltech Library Service

Boundary Operators in Effective String Theory

Hellerman, Simeon and Swanson, Ian (2017) Boundary Operators in Effective String Theory. Journal of High Energy Physics, 2017 (4). Art. No. 85. ISSN 1126-6708. doi:10.1007/JHEP04(2017)085.

[img] PDF - Published Version
Creative Commons Attribution.

[img] PDF - Submitted Version
See Usage Policy.


Use this Persistent URL to link to this item:


Various universal features of relativistic rotating strings depend on the organization of allowed local operators on the worldsheet. In this paper, we study the set of Neumann boundary operators in effective string theory, which are relevant for the controlled study of open relativistic strings with freely moving endpoints. Relativistic open strings are thought to encode the dynamics of confined quark-antiquark pairs in gauge theories in the planar approximation. Neumann boundary operators can be organized by their behavior under scaling of the target space coordinates X μ , and the set of allowed X-scaling exponents is bounded above by +1/2 and unbounded below. Negative contributions to X-scalings come from powers of a single invariant, or “dressing” operator, which is bilinear in the embedding coordinates. In particular, we show that all Neumann boundary operators are dressed by quarter-integer powers of this invariant, and we demonstrate how this rule arises from various ways of regulating the short-distance singularities of the effective theory.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Additional Information:© The Author(s) 2017. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. Article funded by SCOAP3. Received: September 23, 2016. Accepted: February 8, 2017. Published: April 13, 2017. The authors are deeply grateful to J. Sonnenschein and O. Aharony for discussions that were responsible for refining the ideas presented herein and motivating the derivation of the dressing rule in section 3. The work of SH is supported by the World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan, and also supported in part by JSPS KAKENHI Grant Numbers JP22740153, JP26400242. SH and IS are grateful to the Walter Burke Institute for Theoretical Physics at Caltech for generous hospitality while this work was in progress.
Group:Walter Burke Institute for Theoretical Physics
Funding AgencyGrant Number
Ministry of Education, Culture, Sports, Science and Technology (MEXT)UNSPECIFIED
Japan Society for the Promotion of Science (JSPS)JP22740153
Japan Society for the Promotion of Science (JSPS)JP26400242
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Issue or Number:4
Record Number:CaltechAUTHORS:20161024-194402074
Persistent URL:
Official Citation:Hellerman, S. & Swanson, I. J. High Energ. Phys. (2017) 2017: 85.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71430
Deposited By: Joy Painter
Deposited On:25 Oct 2016 16:52
Last Modified:11 Nov 2021 04:45

Repository Staff Only: item control page