2018/04/02 by Raúl Carballo-Rubio, Raul Carballo-Rubio, Luis J. Garay +4
Mathematics · Physics and Astronomy · #Adiabatic process #Context (archaeology) #Field (mathematics) #Limit (mathematics) #Lorentz transformation #Mathematical analysis #Mathematics #Noncommutative and Quantum Gravity Theories #Physics #Pure mathematics #Quantum #Quantum Electrodynamics and Casimir Effect #Quantum Mechanics and Applications #Quantum field theory #Quantum mechanics #Robustness (evolution) #Theoretical physics #Thermal #Thermodynamics #Unruh effect #gr-qc #hep-th #quant-ph
paper · pdf · doi:10.1103/physrevlett.123.041601
published as Phys. Rev. Lett. 123, 041601 (2019) · 6 pages. no figures. RevTeX 4.1
arxiv created 2018/04/02 · openalex publication_date 2019/07/26 · arxiv updated 2019/07/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We show that uniformly accelerated detectors can display genuinely thermal features even if the Kubo-Martin-Schwinger (KMS) condition fails to hold. These features include satisfying thermal detailed balance and having a Planckian response identical to cases in which the KMS condition is satisfied. In this context, we discuss that satisfying the KMS condition for accelerated trajectories is just sufficient but not necessary for the Unruh effect to be present in a given quantum field theory. Furthermore, we extract the necessary and sufficient conditions for the response function of an accelerated detector to be thermal in the infinitely adiabatic limit. This analysis provides new insight about the interplay between the KMS condition and the Unruh effect, and a solid framework in which the robustness of the Unruh effect against deformations of quantum field theories (perhaps Lorentz-violating) can be answered unambiguously.