IJpelaar, Fabian (2021) Entropy in Physics: An Overview of Definitions andApplications in Quantum Mechanics. Master's Thesis / Essay, Physics.
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Abstract
In modern physics, entropy is a well-known and important quantity. At its core, the entropy is a function of the probabilities of a distribution that is meant to describe the uncertainty in outcome of a random process represented by that distribution. However, it has been used in many different fields and, as a consequence, has many interpretations. Moreover, a lot of different functions have been grouped under the name of entropy, all with their own uses and interpretations. In this work, we discuss the definitions, origins, and interpretations of manyof these functions as well as how they fit together. We will also explicitly cover some of the applications that the entropies have found within physics, in particular in quantum physics. These applications include thermodynamics, measurement uncertainty in quantum mechanics, measures of mixedness in the density matrix formalism and in phase space formalisms, measures of entanglement, and parton distributions in QCD.
| Item Type: | Thesis (Master's Thesis / Essay) |
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| Supervisor name: | Boer, D. |
| Degree programme: | Physics |
| Thesis type: | Master's Thesis / Essay |
| Language: | English |
| Date Deposited: | 26 Jan 2021 10:33 |
| Last Modified: | 26 Jan 2021 10:33 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/23834 |
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