Investigation of the hydrodynamic effects in the Bose-Einstein condensate with vortices in a regular and turbulent regime.

• Grant number: 10/01083-9
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: June 01, 2010
• End date: July 31, 2011
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Vanderlei Salvador Bagnato
• Grantee: Mônica Andrioli Caracanhas Santarelli
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

Due to the recent experimental observation of vortices in our Bose-Einstein condensate after the application of an external oscillatory perturbation, we will develop in this work numeric and semi-analytical techniques to simulate the dynamic of condensate with vortices, allowing explain the experimental observations. Our experiments also would become possible the verification of the turbulent regime, until now only observed in liquid Helium system. Our project will hold also the developing of new theoretical tools to study the quantum turbulence in condensates. Besides that, we will analyze the behavior of a system with vortices and turbulence involving a mixture of two different species of condensates. The group of answers found in these studies will provide new experimental ideas to the investigation of a variety of conditions, including the decayment of the quantum turbulence.

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

SANTARELLI, Mônica Andrioli Caracanhas. Vortices and impurities in atomic superfluids: self-similar expansion and Tkachenko polaron. 2014. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Física de São Carlos (IFSC/BT) São Carlos.