Infinite Family of Integrable Sigma Models Using Auxiliary Fields
Journal Article
·
· Physical Review Letters
We introduce a class of 2D sigma models which are parametrized by a function of one variable. In addition to the physical field , these models include an auxiliary field which mediates interactions in a prescribed way. We prove that every theory in this family is classically integrable, in that it possesses an infinite set of conserved charges in involution, which can be constructed from a Lax representation for the equations of motion. This class includes the principal chiral model (PCM) and all deformations of the PCM by functions of the energy-momentum tensor.
Published by the American Physical Society 2024- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- SC0009999
- OSTI ID:
- 2448128
- Alternate ID(s):
- OSTI ID: 2579746
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 13 Vol. 133; ISSN 0031-9007; ISSN PRLTAO
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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