Stability control of an accordion-type optical lattice for quantum gas experiments

• Grant number: 25/04767-1
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: May 01, 2025
• End date: April 30, 2026
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Philippe Wilhelm Courteille
• Grantee: Natália Bialetzki Cristiano
• 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

Abstract

Quantum gases experiments offers an unique platform where its properties (number of atoms, temperature, shape of the atomic density, interaction between particules, etc.) can be precisely tuned. In particular, the system dimensionality could be modelled making it possible to study physcial phenomena related to one- (1D) and two-dimensional (2D) systems. In the former, effective 2D systems are experimentally produced by strongly confining a three-dimensional (3D) gas in one direction of space froozing its spatial degrees of freedom in that direction. Usually, this confinement is done with standard optical lattices produced by the intererence pattern of conter-propagating laser beams. In this project, we propose to follow the setup described in Ville et al. with the design of an accordion lattice with tunable interfringe spacing. Aditional dynamical control of both position and intensity of the interference pattern making the lattice will assure an excellent reproducibility desired when producing 2D quantum gases. (AU)