Unwinding the amplituhedron in binary
Abstract
We present new, fundamentally combinatorial and topological characterizations of the amplituhedron. Upon projecting external data through the amplituhedron, the resulting configuration of points has a specified (and maximal) generalized “winding number”. Equivalently, the amplituhedron can be fully described in binary: canonical projections of the geometry down to one dimension have a specified (and maximal) number of “sign flips” of the projected data. The locality and unitarity of scattering amplitudes are easily derived as elementary consequences of this binary code. Minimal winding defines a natural “dual” of the amplituhedron. This picture gives us an avatar of the amplituhedron purely in the configuration space of points in vector space (momentum-twistor space in the physics), a new interpretation of the canonical amplituhedron form, and a direct bosonic understanding of the scattering super-amplitude in planar N = 4 SYM as a differential form on the space of physical kinematical data.
- Authors:
-
- Inst. for Advanced Study, Princeton, NJ (United States). School of Natural Sciences
- Univ. of Montreal, Quebec (Canada). Dept. de Mathematiques
- Univ. of California, Davis, CA (United States). Center for Quantum Mathematics and Physics (QMAP), Dept. of Physics
- Publication Date:
- Research Org.:
- Institute for Advanced Study, Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1502437
- Grant/Contract Number:
- SC0009988
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 1; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Scattering Amplitudes; Supersymmetric Gauge Theory
Citation Formats
Arkani-Hamed, Nima, Thomas, Hugh, and Trnka, Jaroslav. Unwinding the amplituhedron in binary. United States: N. p., 2018.
Web. doi:10.1007/jhep01(2018)016.
Arkani-Hamed, Nima, Thomas, Hugh, & Trnka, Jaroslav. Unwinding the amplituhedron in binary. United States. https://doi.org/10.1007/jhep01(2018)016
Arkani-Hamed, Nima, Thomas, Hugh, and Trnka, Jaroslav. Wed .
"Unwinding the amplituhedron in binary". United States. https://doi.org/10.1007/jhep01(2018)016. https://www.osti.gov/servlets/purl/1502437.
@article{osti_1502437,
title = {Unwinding the amplituhedron in binary},
author = {Arkani-Hamed, Nima and Thomas, Hugh and Trnka, Jaroslav},
abstractNote = {We present new, fundamentally combinatorial and topological characterizations of the amplituhedron. Upon projecting external data through the amplituhedron, the resulting configuration of points has a specified (and maximal) generalized “winding number”. Equivalently, the amplituhedron can be fully described in binary: canonical projections of the geometry down to one dimension have a specified (and maximal) number of “sign flips” of the projected data. The locality and unitarity of scattering amplitudes are easily derived as elementary consequences of this binary code. Minimal winding defines a natural “dual” of the amplituhedron. This picture gives us an avatar of the amplituhedron purely in the configuration space of points in vector space (momentum-twistor space in the physics), a new interpretation of the canonical amplituhedron form, and a direct bosonic understanding of the scattering super-amplitude in planar N = 4 SYM as a differential form on the space of physical kinematical data.},
doi = {10.1007/jhep01(2018)016},
journal = {Journal of High Energy Physics (Online)},
number = 1,
volume = 2018,
place = {United States},
year = {Wed Jan 03 00:00:00 EST 2018},
month = {Wed Jan 03 00:00:00 EST 2018}
}
Web of Science
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