Self-testing quantum systems

• Grant number: 25/02145-3
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: April 01, 2025
• End date: March 31, 2026
• Field of knowledge: Physical Sciences and Mathematics - Physics
• Principal Investigator: Bárbara Lopes Amaral
• Grantee: Benjamin Giriboni Monteiro
• Host Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 20/06454-7 - Non-locality and contextuality as resources for quantum information, quantum computation and the certification of quantum devices, AP.JP

Abstract

This project aims to introduce the student to the fascinating field of quantum non-locality and its crucial role in quantum information science. Quantum non-locality, arising from entanglement, allows for correlations that defy classical explanations, offering advantages in various quantum information protocols. We will explore the significance of non-locality in device-independent protocols, measurement-based quantum computation, and random number generation. A key focus will be on self-testing, a powerful technique for certifying quantum devices based solely on observed statistics. Self-testing leverages violations of Bell inequalities to infer the underlying quantum states and measurements, providing a robust method for validating quantum systems. This project will delve into the theoretical foundations of self-testing and its practical applications in quantum information processing, equipping the student with valuable knowledge and skills in this rapidly evolving field.