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http://hdl.handle.net/2445/202929
Title: | Cavity-Enhanced Non-destructive Measurement of Magnetic Observables in Cold Atomic Ensembles |
Author: | Méndez Avalos, Diana |
Director/Tutor: | Mitchell, Morgan Benedicto Orenes, Daniel |
Keywords: | Mesura en mecànica quàntica Treballs de fi de màster Measurement in quantum mechanics Master's thesis |
Issue Date: | Jul-2023 |
Abstract: | Faraday rotation measurements (FRM) are highly valuable due to their potential to behave as quantum non-destructive measurements under certain conditions. Moreover, applying FRM to Bose-Einstein condensates (BEC) offers significant insights into the magnetic properties, dynamics, and quantum phenomena of the condensate. To optimize FRM on a BEC, we have implemented an optical cavity that maximizes the interaction between atoms and light. In this work we present a frequency locking system for a 780nm probe laser implementing a Maximum Search Algorithm in a microcontroller Arduino UNO. The implementation of this system has yielded promising results, reducing the noise after the cavity by ∼ 20dB compared to the system without the algorithm. Consequently, we can approach the shot noise limit more closely, stabilizing the set-up for the Faraday rotation measurements. |
Note: | Màster Oficial de Ciència i Tecnologia Quàntiques / Quantum Science and Technology, Facultat de Física, Universitat de Barcelona. Curs: 2022-2023. Tutors: Morgan Mitchell, Daniel Benedicto |
URI: | http://hdl.handle.net/2445/202929 |
Appears in Collections: | Màster Oficial - Ciència i Tecnologia Quàntiques / Quantum Science and Technology |
Files in This Item:
File | Description | Size | Format | |
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Master_Thesis_FinalMendez Avalos.pdf | 2.77 MB | Adobe PDF | View/Open |
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