Warped Convolutions, Rieffel Deformations and the Construction of Quantum Field Theories

Buchholz D, Lechner G, Summers SJ (2011)


Publication Type: Journal article

Publication year: 2011

Journal

Book Volume: 304

Pages Range: 95-123

Journal Issue: 1

DOI: 10.1007/s00220-010-1137-1

Abstract

Warped convolutions of operators were recently introduced in the algebraic framework of quantum physics as a new constructive tool. It is shown here that these convolutions provide isometric representations of Rieffel's strict deformations of C*-dynamical systems with automorphic actions of ℝn, whenever the latter are presented in a covariant representation. Moreover, the device can be used for the deformation of relativistic quantum field theories by adjusting the convolutions to the geometry of Minkowski space. The resulting deformed theories still comply with pertinent physical principles and their Tomita-Takesaki modular data coincide with those of the undeformed theory; but they are in general inequivalent to the undeformed theory and exhibit different physical interpretations. © 2010 The Author(s).

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APA:

Buchholz, D., Lechner, G., & Summers, S.J. (2011). Warped Convolutions, Rieffel Deformations and the Construction of Quantum Field Theories. Communications in Mathematical Physics, 304(1), 95-123. https://doi.org/10.1007/s00220-010-1137-1

MLA:

Buchholz, Detlev, Gandalf Lechner, and Stephen J. Summers. "Warped Convolutions, Rieffel Deformations and the Construction of Quantum Field Theories." Communications in Mathematical Physics 304.1 (2011): 95-123.

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