Pseudo-Hermitian thermal machines
Here we present a protocol for implementing a quantum thermal machine based on an NMR pseudo-Hermitian time-dependent Hamiltonian. We use an Otto cycle to derive the machine’s efficiency and power delivery, analyzing the role of pseudo-Hermiticity in the engine’s operation. Specifically, we show that pseudo-Hermiticity can combine unit efficiency with a power delivery rate that increases the further the Hamiltonian is from Hermiticity, suggesting this is a general feature of pseudo-Hermitian thermal machines.
Authors
- L.F.A. da Silva (ORCID: https://orcid.org/0000-0002-8418-4833)
- M.A. de Ponte
- H. Sanchez (ORCID: https://orcid.org/0000-0002-4915-4495)
- N.G. de Almeida (ORCID: https://orcid.org/0000-0001-8517-6774)
- M.H.Y. Moussa (ORCID: https://orcid.org/0000-0002-3026-0845)
Institutions
- Universidade de São Paulo (BR)
- Universidade Federal de Goiás (BR)
- Universidade Estadual Paulista (Unesp) (BR)
Publication Details
- Journal
- Physica A Statistical Mechanics and its Applications
- Published
- 2026-05-01
- DOI
- https://doi.org/10.1016/j.physa.2026.131622
- Primary Topic
- Advanced Thermodynamics and Statistical Mechanics
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Fundação de Amparo à Pesquisa do Estado de São Paulo