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Probing quantum many-body nonlinear quantum optics with strongly interacting Rydberg-polaritons

Grant number: 19/13904-1
Support type:Scholarships abroad - Research
Effective date (Start): February 01, 2020
Effective date (End): January 31, 2021
Field of knowledge:Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
Cooperation agreement: European Research Council
Principal researcher:Rafael Rothganger de Paiva
Grantee:Rafael Rothganger de Paiva
Host: Sebastian Hofferberth
Home Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
Research place: University of Southern Denmark (SDU), Denmark  


Classical nonlinear optics is, in essence, the modification of the optical properties of materials subject to intense light beams. Differently from linear phenomena, nonlinear effects can be used to make light interact with light. In optical sciences, an enduring goal has been the realization of nonlinear interactions at lower light powers. Therefore, the regime where photons strongly interact is the lowest achievable limit of light intensity. At this point, quantum properties of light and matter are of great importance, and we can call this regime, quantum nonlinear optics. Understanding nonlinear optics at this limit could improve the performance of classical devices and enable advances in the growing field of quantum information processing and communication. This is an experimental proposal in the field of nonlinear quantum optics.The setup aims for studying nonlinear quantum optics with the novel approach of exploiting the advantages of ytterbium to create a large, free-space medium in which many-body phenomena of strongly interacting Rydberg-polaritons can be investigated. Further, it is intended to explore the novel field of alkaline-earth-like Rydberg physics. (AU)

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