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Till Bargheer


I am a researcher in the Theory Group of DESY Hamburg, and the Principal Investigator of the new independent Emmy-Noether Research Group Solving Field Theory with Integrability.

Till

DFG Emmy-Noether-Program DESY

Till Bargheer

DESY Hamburg
Notkestraße 85
22607 Hamburg, Germany

Building 2a, Room 203

till.bargheer@desy.de (PGP key)

Job openings

spin chain

Research

I work on mathematical aspects of quantum field and string theory, mostly in the setting of planar gauge theory and the AdS/CFT duality, and especially on the integrable structures that appear in this context.

Interests

Gauge and string theory, AdS/CFT duality, genus expansion

Integrability, Bethe ansatz, separation of variables (a la Sklyanin)

Scattering amplitudes, Wilson loops, Regge limit

Moduli spaces, matrix models, topological recursion

Publications

All of my publications can be found at the following profiles:

arXiv: bargheer_t_1

INSPIRE: T.Bargheer.1

ORCID: 0000-0002-3590-0899

Teaching

Summer 2021:

Exercises: Introduction to Quantum Theory ( note on Fourier transformations, presence problems, homework problems )

Winter 2020:

Exercises: Analytical Mechanics and Special Relativity ( note on symmetries, presence problems, homework problems )

Summer 2020:

Full Course: Theory of Fundamental Interactions ( lecture notes, problems )

Winter 2019:

Exercises: Programming for Physicists ( lecture data types, lecture analytic computing, problems )

Summer 2019:

Full Course: Introduction to Integrability ( invitation, literature, syllabus, problems )

Winter 2018:

Exercises: Statistical Physics ( presence problems, homework problems )

Summer 2018:

Exercises: Introduction to Quantum Theory ( presence problems, homework problems )

Conference Talks and Seminars

Here are some of my presentations, with links to slides and notes:

2021-03-23 Deconstructing AdS/CFT with Integrability — Seminar, ETH Zürich

2019-12-02 Exact Four-Point Functions: Genus Expansion, Matrix Model, and Strong Coupling — Seminar, Nordita, Stockholm

2019-04-08 Non-Planar Hexagonalization & Large-N Resummation — Nonperturbative Methods for Conformal Theories, IIP Natal, Brazil

2019-02-28 Handling Handles: Non-Planar AdS/CFT Integrability — Nordic String Meeting, Max-Planck Institute Potsdam

2019-02-01 Handling Handles: Non-Planar AdS/CFT Integrability — Seminar, Humboldt University Berlin

2018-10-10 Handling Handles: Non-Planar AdS/CFT Integrability — ENS/Saclay Integrability Meeting, Paris

2018-08-20 Handling Handles: Non-Planar AdS/CFT Integrability — IGST Conference, Copenhagen

2018-06-21 Handling Handles: Non-Planar AdS/CFT Integrability — DESY Hamburg String Theory Seminar

2018-05-31 Handling Handles: Non-Planar AdS/CFT Integrability — Workshop “Correlation Functions in Solvable Models”, Nordita, Stockholm

2018-04-20 Handling Handles: Non-Planar AdS/CFT Integrability — Workshop “Higher-point correlation functions and integrable AdS/CFT”, Trinity College Dublin

2018-03-28 Handling Handles: Non-Planar AdS/CFT Integrability — Seminar, ETH Zürich

2018-03-26 Handling Handles: Non-Planar AdS/CFT Integrability — Workshop “Holography, gauge theories and black holes”, University of Southampton

2018-03-07 Handling Handles: Non-Planar AdS/CFT Integrability — Joint Seminar at Brussels (ULB, VUB) / KU Leuven / U Mons, Belgium

2017-05-15 Analytic Continuations: From the Multi-Collinear to the Multi-Regge Limit — Workshop “Scattering Amplitudes: from Gauge Theory to Gravity”, KITP, Santa Barbara

2016-07-25 Scattering Amplitudes, Integrability, and the Multi-Regge Limit — Workshop “Classical and Quantum Symmetries in Mathematics and Physics”, Jena

2014-12-12 Integrable Deformations for N=4 SYM and ABJM Scattering Amplitudes — Workshop “Graßmannian Geometry of Scattering Amplitudes”, Caltech

2014-11-11 Integrable Deformations for N=4 SYM and ABJM Amplitudes — Seminar, Simons Center for Geometry and Physics

2012-05-09 Holographic Three-Point Functions in N-4 Super Yang-Mills Theory — Seminar at ETH Zurich

2011-03-25 Scattering Amplitudes in N=6 Super Chern-Simons Theory and Yangian Symmetry — Nordic Network Meeting, Niels Bohr International Academy, Kopenhagen

2009-11-03 Symmetries of Scattering Amplitudes in N=4 Super Yang-Mills Theory — Seminars at Uppsala University, Nordita, and ENS Paris

2009-06-28 A Generating Equation for Integrable Charges — Mathematica Summer School in Porto, Portugal

2008-06-19 Quantum Stability of the Heisenberg Ferromagnet — Conference on Integrable Systems and Quantum Symmetries, Prag, Czech Republic

2008-02-13 Two-Cut Solutions of the Heisenberg Ferromagnet and Stability — Nordic String Meeting in Potsdam, Germany

Posters

Here are some posters I created:

July 2014 Conference “Integrability in Gauge and String Theory”, DESY Hamburg: Three Point Functions of Short Operators

June 2009 Conference “Integrability in Gauge and String Theory”, Potsdam: Long-Range Integrable Spin Chains, Exacting N=4 Superconformal Symmetry, and the Conference Poster that I created with Florian Löbbert and Niklas Beisert

Kruemel

(last updated on July 10, 2019)

(design inspired by Andrew Neitzke's page)