slides Description Large-scale numerical simulations of the Hamiltonian dynamics of a Noisy Intermediate Scale Quantum (NISQ) computer – a digital twin – could play a major role in developing efficient and scalable strategies for tuning quantum algorithms for specific hardware. Via a two-dimensional tensor network digital twin of a Rydberg atom quantum computer, we demonstrate the feasibility of such a program. In particular, we quantify the effects of gate crosstalks induced by the van der Waals interaction between Rydberg atoms: according to an 8×8 digital twin simulation based on the current state-of-the-art experimental setups, the initial state of a five-qubit repetition code can be prepared with a high fidelity, a first indicator for a compatibility with fault-tolerant quantum computing. The preparation of a 64-qubit Greenberger-Horne-Zeilinger (GHZ) state with about 700 gates yields a 99.9% fidelity in a closed system while achieving a speedup of 35% via parallelization. About the speaker Alice Pagano completed her Master’s degree in Physics at the University of Padova in 2021, and she is currently pursuing a PhD at the same institution. Her research interests involve quantum machine learning, tensor network methods, and quantum optimal control techniques for quantum devices. She is actively collaborating with the QRydDemo project based in Stuttgart, which aims to develop a 500-qubit Rydberg atom quantum computer within the next few years. Collaborators Daniel Jaschke (University of Ulm and INFN), Sebastian Weber (University of Stuttgart), Simone Montangero (University of Padova)
Quantum lecture Dr. Giuseppe Calajò gave an introductory lecture on modern platforms for Quantum Nonlinear Optics at the Italian physics student conference (CISF23) in Palermo.
Biography Francesco is a Marie Skłodowska-Curie Action Postdoctoral Fellow at the University of Padua. His MSCA project, Spin-SC, aims to improve the efficiency of photovoltaics by studying energy-conversion processes that can be exploited to broaden the portion of the solar spectrum absorbed by solar cells. Francesco graduated at the University of Padua (2013) and was awarded his Masters in Theoretical Physics from the University of Freiburg (2015). He obtained his PhD in Quantum Information at Monash University in Melbourne (2019), focusing on energy injection, storage and extraction in many-body quantum systems. He then continued studying energy conversion processes in quantum systems, joining RMIT University and the ARC Centre of Excellence in Exciton Science (Melbourne) from 2020 to 2023. His main research interest is to study energy processes that can be used to enhance the performance of opto-electronic devices such as sensors, batteries, photovoltaics, and light-emitting diodes.
The DPG Spring Meeting of the Atomic, Molecular, Quantum Optics and Photonics Section (SAMOP) was held on the University of Hannover campus from March 5th to March 10th, 2023.
The GiRyd Status Workshop 2023 was held at Eberhard Karls University in Tübingen, Germany from February 27th to March 3rd, 2023. Esteemed groups and specialists in the realm of Rydberg or highly excited systems came together to establish the current state-of-the-art in the field and exchange knowledge on the latest breakthroughs.
Quantum Information and Matter © 2023 University of Padova – All rights reserved
P.I. 00742430283 | C.F. 80006480281 | Accessibility | Privacy Policy
