2021/02/28 by Jefferson Luan D. de Oliveira, Jefferson Luan Diniz de Oliveira, Moisés Rojas +2 · 1 citation
Engineering · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Coulomb #Electron #Isochoric process #Physics #Quantum #Quantum and electron transport phenomena #Quantum dot #Quantum mechanics #Quantum tunnelling #Thermal #Thermal Radiation and Cooling Technologies #Thermodynamics #Working fluid #cond-mat.stat-mech #quant-ph
paper · pdf · doi:10.1103/physreve.104.014149
published as Phys. Rev. E 104, 014149 (2021) · 27 pages, 11 figures
arxiv created 2021/05/06 · openalex publication_date 2021/07/30 · arxiv updated 2021/08/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
This paper presents a conceptual design for quantum heat machines using a pair of coupled double quantum dots (DQDs), each DQD with an excess electron to interact, as an working substance. We define a compression ratio as the ratio between the Coulomb couplings which describes the interaction between the electrons during the isochoric processes of the quantum Otto cycle and then we analyze the arising of different regimes of operations of our thermal machine. We also show that we may change the operation mode of an Otto engine when considering the effects due to the quantum tunneling of a single electron between each individual DQD.