Mechanical excitation and energy distribution in trapped cold atoms trapped in both classical and quantum regime

• Grant number: 20/07894-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: October 01, 2020
• End date: January 31, 2022
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Vanderlei Salvador Bagnato
• Grantee: Leandro Alvares Machado
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Associated research grant: 13/07276-1 - CEPOF - Optics and Photonic Research Center, AP.CEPID

Abstract

One of the processes of promoting excitations in trapped atoms is through the imposition of fields that produce mechanical excitations in the gas. Such excitations translate into different types of effects. As the atoms are trapped, the energy can be coupled to the system through movements of the center of mass (oscillations in the potential) or through the heating of the gas (increase of internal energy). In this work we propose to carry out an experiment that allows us to evaluate how the energy is divided in the external or internal part of the system, during mechanical excitations. Such results are important in the general context of quantum fluid excitation, performed within our laboratory in which the work is inserted. Preliminary investigations containing the quantum phase will be done at the end of the work.