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Physics Dissertation Defense - Charris Gabaldon
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Charris Gabaldon, “Spatial Reconstruction of Quantum States of Light”
Abstract: In optical measurements, quantum noise arises from inherent fluctuations in the amplitude and phase of a light field, setting a fundamental limit to detection sensitivity. Although this type of noise is unavoidable, it can be addressed by engineering special quantum states known as quadrature-squeezed states. These states allow noise to be reduced in either the amplitude or phase quadrature, although this comes at the cost of increased noise in the conjugate parameter. Using a generalized reconstruction method, it is possible to separate the squeezed modes through their unique squeezing parameters, even when these modes are spatially overlapped. This study discusses noise tolerance in realistic measurement environments and determines the resolution limits for extracting squeezed state parameters. The framework developed here may be used across a range of applications, including quantum-enhanced metrology for improved precision and imaging techniques.
Bio: Charris Gabaldon graduated from California State University with a B.S. in Physics. She later joined the experimental quantum optics lab at William & Mary under the guidance of Eugeniy Mikhailov to pursue a physics PhD.
Sponsored by: Physics