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Theory of collective and quantum effects in the intensity correlations of a cold atom experiment

Grant number: 23/15457-8
Support Opportunities:Scholarships abroad - Research Internship - Doctorate (Direct)
Effective date (Start): April 01, 2024
Effective date (End): March 31, 2025
Field of knowledge:Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
Principal Investigator:Romain Pierre Marcel Bachelard
Grantee:Mateus Antônio Fernandes Biscassi
Supervisor: Hugbart Mathilde
Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Research place: Université Côte d'Azur, France  
Associated to the scholarship:21/02673-9 - Localization and correlations for light in two dimensions, BP.DD

Abstract

During this one-year research internship, our aim is to delve deeper into the study of collective effects of the light-matter interaction within a cold atomic sample. We will develop theoretical tools to investigate a specific experimental configuration implemented in one of the experiments in the Cold Atoms research group at the Institut de Physique de Nice. The goal is to investigate the results already obtained on the experiment and not fully understood, as well as to make predictions to guide the future of this experiment. Our study focuses on photon-photon correlations, which provide information on the light coherence, and possibly on its quantum nature. Due to the large optical thickness of the atomic clouds in Nice, collective effects due to dipole-dipole interactions arise, which we aim to characterize.

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