02.12.2021NANO COLLOQUIA S3 Avinash Vikatakavi
Date and Time: December 2, 2021 - 15.00 ONLINE
25.11.2021Producing electricity from heat losses: engineered in Pisa the first device capable of achieving it in a controlled manner
It is now possible to create a new generation of “smart” thermoelectric systems to generate clea...
23.11.2021il progetto RIMMEL @ MECSPE - Bologna 2021
Si svolgerà martedì 23 novembre, dalle 16.45 alle 17.45 (Sala Concerto c/o Centro Servizi – Bolo...
19.11.2021Graphene as a solid lubricant becomes super-slippery
Cnr Nano researchers in collaboration with Sussex University and Rice University studied the frictio...
17.11.2021International Workshop on Advanced Materials-to-Device Solutions for Synaptic Electronics
CNR Nano and ICN2 organized the
03.11.2021The RIMMEL Project @ l'Europa è qui 2021 – VOTE THE VIDEO ONLINE
The RIMMEL project enters the “Europe is here ...
11.10.2021Quantum computers become an experimental physics laboratory
A quantum computer is a machine designed to do calculations. Now a group of physicists from CnrNano,...
05.10.20212021 Nobel Prize for the discoveries on TRPV1 and PIEZO receptors
The seminal discoveries by this year’s Nobel Laureates have explained how heat, cold and touch can...
home
- 21.10.2021 - NANO COLLOQUIA 2021 NEST Seminar Alessandro Crippa Date and Time: October 21, 2021 - 11.00 ONLINE https://global.gotomeeting.com/join/926972501 Speaker: Alessandro Crippa (NEST, Istituto Nanoscienze-CNR and Scuola Normale Superiore) Title: Spin qubits on semiconductors: from fundamentals to the way of scale-up Abstract: Super and semiconductors represent the two most relevant categories of conductors for quantum technology. When employed in nanodevices properly engineered, these materials can be used to implement the quantum counterpart of bits, called qubits. So far, among the two classes of materials mentioned above, the leading role in the quest for a platform for quantum computation has been taken by the superconducting qubits, mainly in the architectures of flux qubits and transmon qubits. However, semiconductor spin qubits are gaining interest due to the compatibility with industrial fabrication techniques and long coherence times. Lately, a 4-qubit processor based on single holes spins in a 4-quantum dot structure on planar Ge has demonstrated universal quantum logic [arXiv:2109.07837 (2021)]; on top, rumors report that experiments with 16 qubits on a 4x4 qubit array are on the way. The 53 qubits by Google [Nature 574, 505 (2019)] or the 66 qubits recently fabbed in China [arXiv 2106.14734 (2021)] are not within reach yet, but they don’t look impossible to catch in few years. In this talk, I’ll try to analyze the reason of this impressive growth of the spin qubits field, from both a development of materials and a physics perspective; I’ll focus on the materials I’ve worked on, i.e. Si and Ge. Then, I’ll briefly discuss my present activity on gate-induced current modulation in all-metallic superconducting wires and the qubit implementation of such a platform. Host: Fabio Taddei fabio.taddei@nano.cnr.it and Stefan Heun stefan.heun@nano.cnr.it This seminar is co-hosted by IQubits (a H2020 project - grant agreement No 82900)