Atomic vector magnetometer improved with squeezed light for medical, industry and communication applications

• Grant number: 24/08522-0
• Support Opportunities: Program in Quantum Technologies (QuTIa) - Young Investigators Grants
• Start date: January 01, 2025
• End date: December 31, 2029
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Hans Marin Florez
• Grantee: Hans Marin Florez
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil
• Associated scholarship(s): 25/05812-0 - Implementing an optical parametrical oscillator with atomic vapors for quantum sensing, BP.DD; 24/22385-6 - Implementing an Atomic vector magnetometer improved with squeezed light., BP.QUTIA.JP

Abstract

Atomic magnetometers have gain much attention due to their high sensitivity, high sampling rate and low power consumption for applications in medicine, magnetic imaging for industry and more recently magnetic communication. This kind of technology has been developed in many centers of research all over the world. However, Brazil has not shown the implementation of such kind of sensors. This proposal aims to develop the first vector magnetometer in Brazil, based on the rf-dressed states and sensitive enhanced with squeezed light. The goal is to take the principle of rf-dressed state developed in collaboration with prof. Thomas Fernholz from University of Nottingham and make it work with high atomic densities to reach high sensitivities for the vector magnetometer. The use of rf-fields and linear polarized spins make this sensor robust to operate in magnetically shielded and unshielded environments. The squeezed light, can be produce with an optical parametric oscillator (OPO) based in a four wave mixing (4WM) process in hot atomic vapors. Developing this kind of sensor in Brazil paves the way to implement this sensor in medicine, industry and magnetic communication. (AU)