SQEL | Superconducting Quantum Electronics Lab
The SQEL group is focused on the experimental and theoretical study of the properties of mesoscopic superconducting devices at low temperatures
A new recognition of the SQEL cutting-edge research has been given by Raith Nanofabrication to our researcher Nadia Ligato who won the third prize of the RAITH Micrograph Award 2019!
The micrograph winning the award pictures a superconducting quantum interference proximity transistor (SQUIPT), a multi-tunnel junctions device fabricated using electron beam lithography technique and shadow-angle evaporation.
Many compliments to Nadia and stay tuned to not miss new updates about her work!
The Nanowire Week is one of the biggest conferences on nanowires merging two well-established and highly successful annual workshops: NANOWIRES and the Nanowire Growth Workshop. The 2019 edition has been held in Pisa from September 23 to 27 organized by NEST, Scuola Normale Superiore and CNR Istituto Nanoscienze.
Our researcher Elia Strambini presented some unpublished results of our group in a a talk titled “Magnetically-driven anomalous phase shift in InAs nanowire Josephson Junctions” about the revealing of an anomalous phase shift in a Al/InAs(NW)/Al Josephson junction.
A new research carried out at the SQEL report the realization of a titanium-based monolithic superconducting quantum interference device (SQUID) which can be tuned by applying a gate bias to its two Josephson junctions.
The research, published on Nano Letters by F. Paolucci and co-authors, points out the strong implications of the apparent coupling of a static electric field to the macroscopic phase of the superconducting condensate.
Beyond that, this class of quantum interferometers could represent a breakthrough for several applications such as digital electronics, quantum computing, sensitive magnetometry, and single-photon detection.
The project T-CONVERSE “Temperature-to-phase CONVErsion THz Radiation SEnsors”, a collaboration between INFN Sezione di Pisa (F. Paolucci), CNR-Nano (F. Giazotto) and SeeQC-Eu (O. Mukhanov), is one of the projects recommended for funding in the call ATTRACT for the development of breakthrough sensing and imaging technology.
More information on: https://attract-eu.com/selected-projects/temperature-to-phase-conversion-thz-radiation-sensors-t-converse/
Advances in nanofabrication and the understanding and control of the quantum properties of matter are laying the groundwork for revolutionary new technologies and information processing capabilities.
Four PhD students (L. Bours, A. Iorio, C. Puglia and F. Vischi) of the SQEL group were admitted to attend the 2019 Nanotechnology meets Quantum Information (NanoQI) summer school in Donostia-San Sebastián (Spain).
Eight leading experts have been reviewed the experimental and theoretical state-of-the-art for some of the most promising implementations such as semiconductor quantum dots, superconducting circuits, topological insulators and much more.
During the school, our students showcased the research carried out at SQEL in three posters: “Field-effect metallic superconducting electronics” (by C. Puglia), “Field-effect controllable metallic Josephson interferometer” (by F. Vischi) and “Revealing the Spin-Orbit Interaction in InAs nanowires” (by A. Iorio).
The winning micrograph: a superconducting quantum interference proximity transistor with multi tunnel junctions. 
Elia Strambini during his talk at Nanowire Week 2019 
“Field-Effect Controllable Metallic Josephson Interferometer” published on Nano Letters 
ATTRACT is a pioneering initiative bringing together Europe’s research & industrial communities to lead the next generation of detection & imaging technologies. 
SQEL students at NanoQI’19