Leonardo Lavagna

Leonardo Lavagna

I'm a mathematician specialized in Data Science currently pursuing a PhD in Quantum Computing

Sitemap

A list of all the posts and pages found on the site. For you robots out there is an XML version available for digesting as well.

Pages

Posts

Materials related to the 2025 International Joint Conference on Neural Networks

1 minute read

Published:

As discussed in this previous post, the 2025 International Joint Conference on Neural Networks (IJCNN) took place in Rome and our group @NESYA organized a workshop and a special session:

  • Quantum Computing and Quantum Neural Networks – QCNN: a very nice, open and frank workshop about the state of the art and possible directions of quantum computing, with international speakers from Fermilab, ESA, CERN and prestigious universities across the world. The detailed program of the workshop can befound here.
  • Hyperdimensional Computing and Vector Symbolic Architectures for Neural Networks and Artificial Intelligence: a very interesting special session to broaden the view about promising alternatives to standard machine learniong architectures, with in-depth talks about some difficult aspects of vector symbolic computations and new ideas to push forward the research in this niche.
Read more

Materials related to the 2025 IEEE International Symposium on Circuits and Systems

less than 1 minute read

Published:

I’ve presented our work at the 2025 IEEE International Symposium on Circuits and Systems and had very interesting discussions about post-quantum cryptography. Thanks to the orgaizers for the amazing work. You can chek my slides here and here you can find a blog post that summarizes the motivation and context of our results. In this repository you find all the implementations related to the project. As soon as the proceedings of the conference will be published I will also share more details about our findings. Read more

New Dataset available on Kaggle!

less than 1 minute read

Published:

I have just published a simple educational project that should help the novice to get started with the Google Earth Engine API. The main steps of this project are summarized in the associated Github repository. As a byproduct of the project I have created a new dataset on Kaggle, check it here! This dataset provides geographic and environmental data on different islands from around the world, focusing on their potential for renewable energy generation. It includes information on solar irradiance, wind speeds, and other characteristics useful for sustainability studies and geographic analysis. Since there are not so many public cleaned dataset of this kind I hope it will be usefull. Read more

Attending the International Joint Conference on Neural Networks 2025

less than 1 minute read

Published:

I’m going to present at IJCNN 2025 a couple of recent results about the intersections of quantum computing and hyperdimensional computing, and a collaboration on the application of QAOA-type methods to anomaly detection problems in univariate time-series. This year I’m lucky that the conference will be held in Rome, thanks to all the organizers for the amazing work they are doing. If you happen to be around let me know! Read more

Open DIET 2025

less than 1 minute read

Published:

Acoording to tradition, also this year we are hosting the Open DIET event where highschool students can join for one day the research teams in our Department in innovative projects and see with their own eyes cutting edge technologies and curren trends in modern electronics, artificial intelligence and quantum computing. This year I will propose a (hopefully fun) project where a student can simulate Classical and Quantum Walks with an Arduino-Based LED System. All the details are in this repository. If you happen to be in Rome in that period, let me know! Read more

Attending the 2025 IEEE International Symposium on Circuits and Systems

less than 1 minute read

Published:

I’m going to present a work on Quantum Cryptography at the 2025 IEEE International Symposium on Circuits and Systems (ISCAS 2025). The title of the talk is “Trade-Offs in Cryptosystems by Boolean and Quantum Circuits” where we have analized the security of cryptosystems based on trapdoor permutations against NISQ attacks. The materials will be available soon, and a preliminary schedule is available here. Read more

Joined Qeios

less than 1 minute read

Published:

I’ve just joined the Open Sicence Platform Qeios. It is an open-access, open peer review, academic publishing platform. Publishing on Qeios is free and doesn’t rely on editors to accept or reject papers. Instead, reviewers openly evaluate papers after publication, offering feedback to improve the work and guide readers on its quality. This post-publication peer review system allows broad participation, highlighting strong research and limiting the spread of flawed studies, and I believe it to be a kind of alternative to the many flaws current academic publishing has displayed over and over. If you are interested you can check my first contribution on Qeios here. Read more

Attending the 8th International Conference on Quantum Techniques in Machine Learning

less than 1 minute read

Published:

I’m going to attend the 8th International Conference on Quantum Techniques in Machine Learning where we are presenting three results:

Read more

portfolio

publications

A Layerwise-Multi-Angle Approach to Fine-Tuning the Quantum Approximate Optimization Algorithm

Published in 2024 International Joint Conference on Neural Networks (IJCNN), 2024

This work was the natural development of my master thesis on quantum optimization and has its companion blog post here. Read more

Recommended citation: L. Lavagna, A. Ceschini, A. Rosato and M. Panella, "A Layerwise-Multi-Angle Approach to Fine-Tuning the Quantum Approximate Optimization Algorithm," 2024 International Joint Conference on Neural Networks (IJCNN), Yokohama, Japan, 2024, pp. 1-8. https://ieeexplore.ieee.org/document/10650075

Evolving Hybrid Quantum-Classical GRU Architectures for Multivariate Time Series

Published in 2024 IEEE 34th International Workshop on Machine Learning for Signal Processing (MLSP), 2024

This paper is about an hybrid quantum-classical Gated Recurrent Unit used to infer information about multidimensional time series and has its companion blog post here. Read more

Recommended citation: Francesca De Falco, Leonardo Lavagna, Andrea Ceschini, Antonello Rosato, Massimo Panella: Evolving Hybrid Quantum-Classical GRU Architectures for Multivariate Time Series, in the 2024 IEEE 34th International Workshop on Machine Learning for Signal Processing (MLSP). https://inspirehep.net/literature/2849278

Trade-offs in Cryptosystems by Boolean and Quantum Circuits

Published in 2025 IEEE International Symposium on Circuits and Systems (ISCAS), 2025

This work explores the impact of NISQ devices on encryption-decryption schemes and has its companion blog post here and code in this repository. Read more

Recommended citation: L. Lavagna, F. De Falco, A. Ceschini, A. Rosato and M. Panella, "Trade-offs in Cryptosystems by Boolean and Quantum Circuits," 2025 IEEE International Symposium on Circuits and Systems (ISCAS), London, UK, pp. 1-5. https://ieeexplore.ieee.org/document/11043205

A topical review on time-independent perturbation theory in one-dimensional quantum systems

Published in Physica Scripta, 2025

This review presents time-independent perturbative methods for solving the one-dimensional Schrödinger equation, highlighting representative cases that reveal key aspects of the theory. The focus is on their relevance to quantum computing applications, particularly in systems with finite-dimensional state spaces. Blog post here and code here. There is also an app in the Applets page. Read more

Recommended citation: L. Lavagna, S. Carillo and M. Panella, "A topical review on time-independent perturbation theory in one-dimensional quantum systems," 2025 Phys. Scr. 100 102001. https://iopscience.iop.org/article/10.1088/1402-4896/ae0a8f

On the Effects of Small Graph Perturbations in the MaxCut Problem by QAOA

Published in AVS Quantum Science, 2025

In this article we investigate the Maximum Cut (MaxCut) problem on different graph classes with the quantum approximate optimization algorithm (QAOA) using symmetries. In particular, heuristics on the relationship between graph symmetries and the approximation ratio achieved by a QAOA simulation are considered Read more

Recommended citation: L. Lavagna, S. Piperno, A. Ceschini and M. Panella, "On the Effects of Small Graph Perturbations in the MaxCut Problem by QAOA ," 2025 AVS Quantum Science 7(4), doi: 10.1116/5.0253160. https://www.researchgate.net/publication/396483291_Small_graph_perturbations_QAOA_and_the_MaxCut_problem

Machine Learning-Guided microfluidic optimization of clinically inspired liposomes for nanomedicine applications

Published in International Journal of Pharmaceutics, 2025

This article discusses the transformative role of machine learning in optimizing liposome development, a process traditionally limited by its complexity, high cost, and time-intensive experimentation. By analyzing over 300 experimental conditions using a microfluidic production platform inspired by the formulations of Doxil® and Marqibo®, the study demonstrates how predictive models can efficiently determine key liposome characteristics such as particle size and polydispersity index. An open-source simulation tool was also developed to allow researchers to virtually design and test formulations, reducing the need for extensive laboratory work. The models were validated through independent experiments, confirming their robustness and adaptability. Code available here with an associated app here. Read more

Recommended citation: G. Buttitta, L. Lavagna, S. Bonacorsi, C. Barbarito, M. Moliterno, G. Saito, I. Oddone, G. Verdone, S. Raimondi, M. Panella, "Machine Learning-Guided microfluidic optimization of clinically inspired liposomes for nanomedicine applications", International Journal of Pharmaceutics, Vol. 686, 2025. https://www.sciencedirect.com/science/article/pii/S0378517325011998

Novel Quantum Approaches to Hyperdimensional Computing for Neural Networks

Published in 2025 International Joint Conference on Neural Networks (IJCNN), 2025

We introduce new quantum machine learning models that combine both quantum and hyperdimensional computing. Code available here. Associated Blog post here Read more

Recommended citation: L. Lavagna, A. Ceschini, A. Rosato and M. Panella, "Novel Quantum Approaches to Hyperdimensional Computing for Neural Networks," 2025 International Joint Conference on Neural Networks (IJCNN), Rome, Italy, 2025, pp. 1-8. ieeexplore.ieee.org/document/11228152

Hybrid Quantum-Classical Framework for Anomaly Detection in Time Series with QUBO formulation and QAOA

Published in 2025 International Joint Conference on Neural Networks (IJCNN), 2025

We introduce a hybrid quantum-classical framework to address anomaly detection problems in time series data using an innovative Quadratic Unconstrained Binary Optimization formulation. Code available here. Associated Blog post here Read more

Recommended citation: M. Casalbore, L. Lavagna, A. Rosato and M. Panella, "Hybrid Quantum-Classical Framework for Anomaly Detection in Time Series with QUBO formulation and QAOA," 2025 International Joint Conference on Neural Networks (IJCNN), Rome, Italy, 2025, pp. 1-8. https://ieeexplore.ieee.org/document/11228152

talks

Azione e costante di Plank

Published:

Talk (in italian) concluding the residential stage in Laboratori Nazionali di Frascati (LNF), supervised by Dott. Danilo Babusci. The topic I studied was the relationship between the quantization of the action functional and the value of Plank’s constant, measured also experimentally during the stage using LEDs. The notes (written in italian) of the talk are available here. Read more

Isometries of the hyperbolic plane and the Möbius group of the sphere

Published:

Talk at the seminar “Geometrie auf der Sphäre und im hyperbolischen Raum” organized by Prof. Margarita Kraus at the Johannes Gutenberg University of Mainz (Germany). The main point was to show that the isometry group of the hyperbolic space is isomorphic to a subgroup of the Möbius group of the sphere. The notes of the talk are available here. Read more

The Hill Equation

Published:

Talk at the seminar “Advanced methods of averaging in Ordinary Differential Equations” organized by Prof. Alan Rendall at the Johannes Gutenberg University of Mainz (Germany). The topic I discussed was about the Hill equation. The website of the event is available here. The notes of the talk are available here. Read more

Two examples in time-dependant statistical mechanics

Published:

Talk at the seminar “Stochastische Techniken in mathematischer Modellierung” organized by Prof. Mária Lukácová-Medvidová at the Johannes Gutenberg University of Mainz (Germany). The main topic was time-dependent statistical mechanics. The web page of the seminar is available here. The notes of the talk are available here. Read more

teaching

Teaching experience 1

Undergraduate course, University 1, Department, 2014

This is a description of a teaching experience. You can use markdown like any other post. Read more

Teaching experience 2

Workshop, University 1, Department, 2015

This is a description of a teaching experience. You can use markdown like any other post. Read more