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Full-Text Articles in Physics
Optimization Of Quantum Optical Metrology Systems, Nicholas Michael Studer
Optimization Of Quantum Optical Metrology Systems, Nicholas Michael Studer
LSU Doctoral Dissertations
It can be said that all of humanity's efforts can be understood as a problem of optimization. We each have a natural sense of what is ``good'' or ``bad'' and thus our actions tend towards maximizing -- or optimizing -- some notion of good and minimizing those things we perceive as bad or undesirable.
Within the sciences, the greatest form of good is knowledge. It is this pursuit of knowledge that leads to not only life-saving innovations and technology, but also to furthering our understanding of our natural world and driving our philosophical pursuits.
The principle method of obtaining knowledge …
Precision Of Parameter Estimation In Quantum Metrology, Chenglong You
Precision Of Parameter Estimation In Quantum Metrology, Chenglong You
LSU Doctoral Dissertations
The fundamental precision limit of an interferometer is crucial since it bounds the best possible sensitivity one could achieve using such a device. This thesis will focus on several different interferometers and try to give the ultimate precision bounds by carefully counting all the resources used in the interferometers.
The thesis begins with the basics of the quantum state of light. The fundamentals of quantum metrology are also reviewed and discussed. More specifically, the terminology of classical and quantum Cram\'er-Rao bound and classical and quantum Fisher information are introduced.
Chapter 3 discusses the conclusive precision bounds in two-mode interferometer such …