Alonso Hernández Antón, graduate in Physics from the University of Zaragoza, wins the Certamen Arquímedes
His final degree work on quantum computing receives the “special prize of the jury”, the highest distinction awarded to the “best work” for its scientific, technological or social impact in any of the areas.
This study has been co-directed by Alberto Castro, ARAID researcher at BIFI and Fernando Luis and David Zueco, CSIC researchers at INMA, a joint CSIC-UNIZAR center.
(Zaragoza, Tuesday, June 21, 2022). Alonso Hernández Antón, a graduate in Physics from the University of Zaragoza, has won the Certamen Arquímedes (call) with which the Ministry of Universities rewards the best research work carried out in Spanish universities by undergraduate or master students.
Alonso received the “special prize of the jury” (BOE), the highest distinction of the contest, since it is awarded only to one of all the participants and categories, to the best work that stands out for its scientific, technological or social impact in any of the areas.
His final degree work, entitled “Quantum error correction with spin molecular qudits”, was co-directed by Alberto Castro (ARAID researcher at the Instituto de Biocomputación y Física de Sistemas Complejos (BIFI) of the University of Zaragoza, and Fernando Luis and David Zueco, both CSIC researchers at the Instituto de Nanociencia y Materiales de Aragón (INMA, a joint CSIC-UNIZAR center).
Lately we have been hearing a lot about quantum computing, a novel and alternative proposal that, in the long term, promises to accelerate exponentially the computing capacity and open the door to applications as important as the search for new drugs, the development of materials on demand, cybersecurity or finance.
The “Quantum Materials and Devices” group of INMA leads an initiative, involving the BIFI and the I3A, to develop a quantum processor based on magnetic molecules. His proposal is to store information (zeros and ones) in the spin of these molecules and manipulate it through superconducting circuits. The main challenge posed by these devices is their extreme sensitivity to noise, a phenomenon known as “decoherence”, which makes it necessary to increase the speed of operation and, at the same time, keep them well isolated from external disturbances.
Alonso’s work provides a novel and interesting solution to this problem. He has adapted numerical simulation techniques that allow optimization of the spin control pulses by taking into account their interaction with noise sources. The results are promising, as it has been shown that fidelities above 90% can be achieved even in the presence of noise.