Analysis and Dissection of Interference Effects in Macroscopic Quantum Phenomena with Double-Well Potential Models

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Shah Mansoori, Nasim | 2019

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Type of Document: Ph.D. Dissertation
Language: Farsi
Document No: 52587 (03)
University: Sharif University of Technology
Department: Chemistry
Advisor(s): Shafiee, Afshin
Abstract:
In the early days of quantum mechanics it seemed that, this theory is presented to describe atoms and molecules. As the time went on, by distinguishing different applications of quantum mechanics a question raised in scientists minds. Is it possible to see strange quantum effects in every day life. In this regard several attempt have been made to see such properties. One of these phenomena is observing interference effects for Fulleren molecules. In this thesis we investigate different properties of a macroscopic quantum system in different situations. We showed that an asymmetric double well potential, which is a macroscopic quantum system in interaction with environment violates Leggett-Garg Inequality stronger than before. We also showed that interference effects for this system get stronger when the system interacts with two different environments. Finally we introduce an interaction-free measurement thought experiment to distinguish the presence of a large object without interacting with it
Keywords:
Decoherence ; Interaction-free Measurement ; Non Equilibrium Environment ; Open Systems ; Double-well Potential

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