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Tensionless strings of six-dimensional superconformal theories

Total Cost €


EC-Contrib. €






Project "6D STRINGS" data sheet

The following table provides information about the project.


Organization address
address: SPUI 21
postcode: 1012WX

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Netherlands [NL]
 Project website
 Total cost 165˙598 €
 EC max contribution 165˙598 € (100%)
 Programme 1. H2020-EU.1.3.2. (Nurturing excellence by means of cross-border and cross-sector mobility)
 Code Call H2020-MSCA-IF-2015
 Funding Scheme MSCA-IF-EF-ST
 Starting year 2016
 Duration (year-month-day) from 2016-09-01   to  2018-08-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Despite the important role they play in M-theory, six-dimensional superconformal field theories (SCFTs) are to this day not well understood. A characteristic feature of 6d SCFTs is that their degrees of freedom include tensionless strings; while some properties of these strings have been studied in recent years, the 2d SCFTs that govern their behavior have not been constructed. In this proposal I outline a research plan to determine the 2d theories governing the strings, and use this knowledge to study the dynamics of six-dimensional SCFTs.

I also explore two important applications of this class of 2d SCFTs. First, I will determine whether a conventional gravity dual to such 2d theories under the AdS3/CFT2 correspondence exists. I will then use the 2d SCFTs to study the properties of their gravity duals and establish whether such gravity duals behave as string theories, thus testing the string universality conjecture for 3d quantum gravity.

Second, I will use one of the 2d SCFTs under consideration to investigate the Mathieu moonshine conjecture. This conjecture connects two seemingly unrelated areas of mathematics: mock modular forms and representation theory of the Mathieu group M24. It is expected that this deep mathematical relation will be explained by an appropriate string theory construction; I argue that the 2d SCFT under consideration can be expected to play a role in the proof.

The research will take place at the University of Amsterdam’s Institute of Physics. The Institute hosts some of the world’s top experts on the proposed research topics. The project will be conducted by combining techniques from their areas of research with my expertise on six-dimensional SCFTs and their tensionless strings. The research program includes a strong training plan and a clear transfer of knowledge, and will contribute to reinforce European excellence in theoretical high-energy physics.


year authors and title journal last update
List of publications.
2017 Michele Del Zotto, Guglielmo Lockhart
On exceptional instanton strings
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP09(2017)081
Journal of High Energy Physics 2017/9 2019-06-13
2018 Michele Del Zotto, Jie Gu, Min-xin Huang, Amir-Kian Kashani-Poor, Albrecht Klemm, Guglielmo Lockhart
Topological strings on singular elliptic Calabi-Yau 3-folds and minimal 6d SCFTs
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP03(2018)156
Journal of High Energy Physics 2018/3 2019-06-13
2018 Michele Del Zotto, Guglielmo Lockhart
Universal features of BPS strings in six-dimensional SCFTs
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP08(2018)173
Journal of High Energy Physics 2018/8 2019-04-18

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The information about "6D STRINGS" are provided by the European Opendata Portal: CORDIS opendata.

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