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Bibliographic Details
Main Authors: Kostelecky, Alan, Lehnert, Ralf, Schreck, Marco, Seradjeh, Babak
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2412.19733
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Table of Contents:
  • Regimes of Lorentz-violating effective field theories are studied in which departures from Lorentz symmetry are nonperturbative. Within a free toy theory exhibiting Lorentz breakdown involving an operator of mass dimension three, it is shown that conventional methods suffice to achieve field quantization and Fock-space construction. However, the absence of an observer-invariant energy-positivity condition requires physical input beyond the free theory for the unambiguous identification of a ground state. An investigation of the role of thermodynamics in this context is instigated.