Quantum technologies

Anno accademico 2022/2023
Docente Andrea Guerrini, Leonardo Fallani, Federico Paolucci, Stefano Roddaro, Fabio Beltram

Didattica integrativa

Esercitazioni

Pasqualantonio Pingue

Modalità d'esame

Prova orale

Prerequisiti

Nozioni di struttura della materia e fisica dello stato solido. Il corso è consigliato per gli allievi perfezionandi.

Programma del corso

Cold-atom-based QTs

Quantum technologies with laser-cooled atoms: an introduction to the physical platform, experimental tools and methods. 

Cold atoms for sensing and metrology: atomic clocks and atom interferometers. 

Cold atoms for quantum simulation: engineering quantum models and synthetic materials with atoms and light. Cold atoms for quantum computing.

 

Semiconductor-based QTs

Heterostructures (HSs): electronic states, carrier statistics, quantum transport and optical properties of superlattices, quantum wells and wires. Nanofabrication, quantum devices. 2D electron gas in HSs and 2D materials. Integer and fractional quantum Hall effects. Many body effects, charging energy, Coulomb and Pauli blockade in single and coupled quantum dots. Single-photon sources and detectors: quantum cryptography.

Semiconductor and hybrid semiconductor/superconductor qubits (Hall systems, single-vacancies, gatemons). Nanofabrication techniques. Single-spin systems in diamond.

 

Superconductor-based QTs

Introduction to Josephson effect and superconducting circuits. Basic architectures of superconductor qubits: phase, charge and flux qubit. Coupling superconducting qubits in functional QT systems.

Thermal transport in superconducting nanostructures, thermometry and cooling techniques. Phase-dependent effects. Quantum sensing with superconducting circuits.

Riferimenti bibliografici