Cold Atoms in Ring Cavities

• Grant number: 23/16523-4
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: February 01, 2024
• End date: January 31, 2027
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Philippe Wilhelm Courteille
• Grantee: Yajaira Dalila Rivero Jerez
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 22/00209-6 - Second generation quantum technologies, AP.TEM
• Associated scholarship(s): 25/26240-5 - A quantum computing demonstrator with cold strontium atoms in optical cavities, BE.EP.PD

Abstract

Cold atoms represent an ideal platform for the implementation of second-generation quantum technologies. Particularly interesting opportunities emerge from a coherent coupling of the atoms to a single-mode light field enabled by a resonant optical cavity. This project will pursue two research lines. The first one is a study of the interaction of ultracold atoms with a ring cavity in parameter regimes suitable for the creation of non-classical collective states of the atomic cloud with possible application in Heisenberg-limited interferometry. The regime may also allow for a global synchronization of the atomic dipoles with application in superradiant lasing. The second research line is devoted to setting up a high sensitivity matter-wave interferometer for inertial sensing and gravimetry. It is based on observing in real time Bloch oscillations performed by atoms located inside a periodic optical lattice formed by two counter-propagating modes of the cavity and exploits the fact that the periodicity of the oscillations is strictly proportional to external forces.

Scientific publications

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

COURTEILLE, PH. W.; RIVERO, D.; DE FRANCA, G. H.; PESSOA JR, C. A.; CIPRIS, A.; PORTELA, M. NUNEZ; TEIXEIRA, R. C.; SLAMA, S.. Photonic bands and normal mode splitting in optical lattices interacting with cavities. PHYSICAL REVIEW A, v. 111, n. 1, p. 18-pg., 2025-01-17. (18/23873-3, 23/10014-0, 19/13143-0, 13/04162-5, 23/16523-4, 24/03884-1, 13/07276-1, 22/00261-8, 23/00866-0)