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All Journal INDONESIAN JOURNAL OF APPLIED PHYSICS
Jeolous Malamula Nyasulu
Department of Physics, Domasi College of Education, University of Malawi
Astronomy Energy Materials Science & Nanotechnology Physics

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Thermodynamic Analysis of Quantum Otto Engines Exploring Qubit Efficiency in Non-Equilibrium Environments Jeolous Malamula Nyasulu; Chunyang Wang; Zengxuan Zhao; Mushtaq Rana Imran
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 16, No 1 (2026): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v16i1.106099

Abstract

This paper presents an analysis of quantum Otto heat engines operating out of equilibrium. It explores the fundamental thermodynamic principles governing these engines, focusing on efficiency, work output, and the impact of environmental factors, including thermal gradients, external fields, noise, and decoherence. The study investigates the effects of non-equilibrium conditions on engine performance, highlighting challenges and opportunities in practical realizations. Through numerical simulations, the article examines the power, efficiency, and performance coefficients, revealing trade-offs between these metrics and the influence of temperature differences and internal coupling strength. The results demonstrate that non-equilibrium effects can significantly reduce efficiency compared to idealized scenarios, underscoring the importance of accounting for both quantum effects and real-world constraints in the design and optimization of quantum heat engines. This work contributes to the growing body of knowledge in quantum thermodynamics, offering insights for quantum computing, sustainable energy technologies, and thermodynamic cycles at the quantum scale.
Co-Authors Chunyang Wang Mushtaq Rana Imran Zengxuan Zhao