The course aims at providing the experimental basis necessary to understand the physics and the technology of quantum devices. The student will learn how to apply experimental technological and characterization tools to materials and devices exploiting quantum effects at the basis of the development of quantum electronics and quantum computing. The realization and characterization of physical structures where quantum states can be prepared and manipulated is nowadays an active research field. Quantum engineers must be able to manage the technologies and the materials of the main quantum devices. The course provides the experimental background to realize and characterize the main quantum devices. It specifically is focused on material properties of semiconductor and other nanotechnologies materials, allowing quantum operation. The course is fundamental for the subsequent courses of the Master Degree, dedicated to qubit electronics, quantum communications and quantum computing. During the first part of the course is focused on fundamental experiences in Quantum Technologies. The second part is focused on Fabrication of Quantum Devices. Finally, the course addresses on experimental technologies such as superconductivity, the Hall effect and others, that are currently exploited for the realization of qubits and quantum devices.

The students are expected to learn how to characterize and realize materials, technological processes and devices of quantum engineering. Main anticipated achievements are: - Knowledge of apparatuses for materials synthesis - Knowledge of characterization techniques - In-depth knowledge of use of devices realization and characterization techniques.

Classical Physics. Basic knowledge of quantum mechanics. Basics of materials technologies and devices realization and characterization technologies.

Part 1. Fundamental Experiences in Quantum Technologies (3 credits) Articulated on laboratory measurement experiences, it includes: - Measurement of Quantum Communication: Quantum Key Exchange with specific protocols; Characterization of key transmission parameters on optical fiber coils (attenuation, key rate, Quantum Bit Error Rate, length/key rate and length /QBER trade-off) - Measurement of Quantum Sensing: nanodiamonds and quantum measurements of electromagnetic fields and temperatures - Measurement of Quantum Metrology: coefficients of atomic sensitivity to magnetic and electric fields; characterization of integrated photonics components for atomic clocks (microresonators, MEMS microcells) - Measurement of Quantum Computing: characterization of semiconductor junctions in fundamental quantum circuits. Part 2. Fabrication of Quantum Devices (3 credits) - Analysis of the main process machines in the production of superconducting devices - Analysis of the main process machines for photonic and atomic quantum devices.

The course consists of theoretical lectures and class practices.

Lectures notes produced by the teacher will be available on-line at the course web page.

Slides;

Modalità di esame: Prova orale obbligatoria;

Exam: Compulsory oral exam;

... Expected learning outcomes: Understanding of the covered topics and ability to grasp the experimental aspects of the technologies and related materials. Ability to build a logical path by assembling the various technological processes, for the construction of a quantum device. Criteria, rules and procedures for the examination: The exam is aimed at ascertaining the knowledge of the topics listed in the official program of the course and the ability to apply the theoretical contents for the solution of simple exercises for the assembly of technological processes. The exam is based on reports of experimental activity and on an oral. Each student will be asked to report on experimental activity and one questions for each of the two parts of the program. The total allotted time is 30-40 mins for each student. No books, notes or any other didactic material is allowed. The assessments are expressed in thirtieths and the exam is passed if the mark is at least 18/30. The maximum achievable mark is 30 cum laude. The exam results are communicated directly to the students at the end of the exam session.

Gli studenti e le studentesse con disabilità o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.