Superconducting Platforms for the Preparation and Characterization of Bosonic Quantum States.

• Grant number: 25/23694-5
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate (Direct)
• Start date: March 03, 2026
• End date: March 02, 2027
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Principal Investigator: Celso Jorge Villas-Bôas
• Grantee: Lucas Ribeiro da Silva Santos
• Supervisor: Juan Jose Garcia Ripoll
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Institution abroad: Consejo Superior de Investigaciones Científicas (CSIC), Spain
• Associated to the scholarship: 24/02604-5 - Quantum information processing in cavity QED, BP.DD

Abstract

Cavity and Circuit Quantum Electrodynamics provide powerful platforms for controlling light-matter interactions at the single-quantum level, enabling a wide range of applications in second-generation quantum technologies, from quantum computing to high-precision sensing. A fundamental aspect of advancing this technology is a deep understanding of the interactions that govern these circuits. This project aims to investigate the dynamics of coupled superconducting qubits and resonators, focusing on a foundational understanding of their interactions and loss mechanisms. Building upon this foundational study, the project will pivot to a key application: developing advanced, resource-efficient protocols for Quantum State Tomography, a critical bottleneck in the field. Specifically, we will develop and analyze the Quantum Phase Estimation algorithm as a powerful tool for performing rapid and non-destructive quantum state characterization and engineering. This work will be developed at the QUINFOG group at IFF-CSIC, leveraging their world-class expertise in superconducting quantum circuits. (AU)