Generalizing of Quantum Theory to Macro Systems and Thermodynamics

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Soltanmanesh, Ali | 2020

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Type of Document: Ph.D. Dissertation
Language: Farsi
Document No: 53124 (03)
University: Sharif University of Technology
Department: Chemistry
Advisor(s): Shafiee, Afshin
Abstract:
Up to this day, no conflict ever observed between experiments and the predictions of quantum mechanics. Scientists are in the belief that quantum mechanics is a universal theory and all the systems, even the classical ones, are quantum mechanical in their nature. In this regard, modeling the Earth-Sun dynamics using Hydrogen atom Hamiltonian has been addressed. Since we understand the classical systems with trajectories, we used Bohmian mechanics as an alternative way to study the Earth-Sun dynamics in a quantum fashion. Moreover, for better understanding the concept of the quantum to classical transition, we studied quantum thermodynamics. Accordingly, we described open quantum systems in terms of decoherence theory to study the thermodynamics of such systems. We solved the Lindblad Master equation to obtain the density matrix of some various systems. Then we studied the thermodynamic evolution of such systems and their accordance with the well-known laws of thermodynamics
Keywords:
Quantum Coherence ; Quantum Thermodynamics ; Macrosystems ; Nonlocality ; Hydrogen Atom ; Bohmian Quantum Mechanics ; Bohmian Trajectories ; Quantum Decoherence

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