Unruh phenomena and thermalization for qudit detectors

التفاصيل البيبلوغرافية
العنوان: Unruh phenomena and thermalization for qudit detectors
المؤلفون: Lima, Caroline, Patterson, Everett, Tjoa, Erickson, Mann, Robert B.
سنة النشر: 2023
المجموعة: General Relativity and Quantum Cosmology
High Energy Physics - Theory
Quantum Physics
مصطلحات موضوعية: Quantum Physics, General Relativity and Quantum Cosmology, High Energy Physics - Theory
الوصف: We study Unruh phenomena for a qudit detector coupled to a quantized scalar field, comparing its response to that of a standard qubit-based Unruh-DeWitt detector. We show that there are limitations to the utility of the detailed balance condition as an indicator for Unruh thermality of higher-dimensional qudit detector models. This can be traced to the fact that a qudit has multiple possible transition channels between its energy levels, in contrast to the 2-level qubit model. We illustrate these limitations using two types of qutrit detector models based on the spin-1 representations of $SU(2)$ and the non-Hermitian generalization of the Pauli observables (the Heisenberg-Weyl operators).
Comment: 10+5 pages, no figures; RevTeX4-2. v2: fixed typos and changed to match the published version
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevD.108.105020
URL الوصول: http://arxiv.org/abs/2309.04598
رقم الأكسشن: edsarx.2309.04598
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevD.108.105020