Agenda

Seminar with Prof. Angelo Di Bernardo, University of Salerno (Italy) and University of Konstanz (Germany)

Event organized as part of the Engineering Physics Colloquia.

It will be possible to follow the seminar remotely, by connecting to the following link:

https://unive.zoom.us/j/81419954712
Password: seminar1

☕ The organizers will offer coffee & cookies to participants☕

Abstract:
The encoding and processing of digital information with superconducting circuits has raised increasing interest over the past decades because it can offer low power consumption, fast operating speeds and ease of coupling with other superconducting devices like superconducting single photon detectors and superconducting qubits.
Several approaches and material platforms have been proposed and tested to realise superconducting circuits, to determine whether they can offer better performance than existing conventional metal-oxide semiconductor (CMOS) architectures or already-existing superconducting logics like single flux quantum. These approaches include superconducting spintronics [1], where superconductor/ferromagnet (S/F) hybrids are used for the generation of spin-polarised Cooper pairs of electrons [2], and three-terminal superconducting devices [3], where a gate voltage is applied to control the supercurrent flowing in a narrow superconducting constriction and set the device logic state.
In this talk, I will review the main progress done in these research fields and discuss the material platforms that hold the greatest potential for their future development [4-6]. I will also outline the main challenges that have to be overcome, for each of the approaches discussed, toward the realisation of superconducting circuits that can be scaled up and fully integrated in large-scale computing and quantum computing architectures.

References
1. J. Linder, J. Robinson, Nat. Phys. 11, 307 (2015).
2. A. Di Bernardo, Z. Salman, X. L. Wang et al., Phys. Rev. X 5, 041021 (2015).
3. L. Ruf, E. Scheer, A. Di Bernardo, ACS Nano 18, 20600 (2024).
4. A. Spuri, D. Nikolic, S. Chakraborty, .. A. Di Bernardo, Phys. Rev. Res. 6, L012046 (2024).
5. H. Alpern, Μ. Αmundsen, R. Hartmann, .., A. Di Bernardo, Phys. Rev. Mater. 5, 114801 (2021).
6. L. Ruf, C. Puglia, T. Elalaily, .., A. Di Bernardo, Appl. Phys. Rev. 11, 041314 (2024).