Quantum technologies

Period of duration of course
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Course info
Number of course hours
50
Number of hours of lecturers of reference
50
Number of hours of supplementary teaching
0
CFU 6
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Modalità esame

Oral exam

Prerequisiti

Students are expected to have basic knwledge of the structure of matter and condensed matter physics as aquired in undergraduate courses, The present course if recommended for PhD students.

Programma

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.

Photon-based QTs

Overview on the different technologies needed to generate photonics quantum states (in either single photon or multi-photon configurations), to manipulate, and to detect quantum states of light across a broad range of frequencies, using bulk and integrated platforms. Overview on the different applications of photonics platform: quantum sensing, quantum communication, quantum simulation and 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. Andreev reflection and proximity effect in hybrid semiconductor/superconductor systems. Semiconductor and hybrid-system architectures for quantum computation. 

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.

Obiettivi formativi

Students will be introduction to the main architectures of interest for quantum science and technology based on cold atoms, semiconductors and superconductors together with the necessary nanofabrication technoques. The course will present some of the current research activities in the field of quantum science and technology.