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Title: Quantum dynamics and measurement of single quantum objects.
Author: Everitt, Mark Julian.
Awarding Body: University of Sussex
Current Institution: University of Sussex
Date of Award: 2000
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We consider the dynamics of Superconducting QUantum Interference Device (SQUID) rings in the presence of time dependent magnetic fields, solving the time dependent Schrodinger equation computationally. We compare the quantum mechanical behaviour of the SQUID ring with that of a simple two state system (the ammonia maser), finding close parallels between these two systems. We then consider the idea of measurement of macroscopic quantum objects by modelling the SQUID ring inductively coupled to a classical measurement device (a LC oscillator circuit). We solve the equations of motion for this coupled system both in the phenomenological Resistively Shunted Junction plus Capacitance (RSJ+C) model and within the framework of two models using a purely quantum mechanical SQUID ring.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Superconducting Physics