▌ Project lead

| in Remigijus Paulavičius 

▌ Project overview

The Centre of Excellence is pioneering quantum computing infrastructure in Lithuania, focusing on the integration of high-performance computing (HPC), quantum simulators and Machine Learning (ML) to address complex data-driven challenges.
The project advances Quantum Machine Learning (QML) methods, explores their applicability across different domains, and develops novel hybrid quantum–classical approaches for scientific discovery.

▌ Project team

Ernestas Filatovas · Marco Marcozzi · Francisco José Orts Gómez · Sasan Ansarian · Ugnė Liaubaitė · Andreea-Iulia Lefterovici 

▌ Publications

High-impact scientific publications

• F. Orts, R. Paulavičius, E. Filatovas.
  Quantum circuit optimization of an integer divider. Journal of Systems and Software, 2024, Vol. 215, Article 112091, pp. 1–19.
  DOI: 10.1016/j.jss.2024.112091

• M. Donaire, G. Ortega, E. M. Garzón, F. Orts, R. Paulavičius, E. Filatovas.
  Halving the number of qubits of quantum comparators. In: International Conference on Parallel Processing and Applied Mathematics, 2025, pp. 290–300.
  DOI: 10.1007/978-3-031-85700-3_21

• M. Marcozzi, E. Filatovas, R. Paulavičius.
  A review of quantum machine learning applications. In: Data Science in Applications. Towards AI-driven Approaches. Cham: Springer, 2025, pp. 143–163. ISBN: 9783031884856.
  DOI: 10.1007/978-3-031-88486-3_7

• L. M. Donaire, G. Ortega, F. Orts, E. M. Garzón, E. Filatovas.
  A hybrid quantum-classical approach for liver disease detection using quantum machine learning. Engineering Applications of Artificial Intelligence, 2026, Vol. 164, Part A.
  DOI: 10.1016/j.engappai.2025.113240

• P. Leščinskaitė, R. Paulavičius, E. Filatovas.
  A MCDM-Based Framework for Quantifying Reproducibility Readiness in Machine Learning Research. Mathematics, 2026, Vol. 14(9), Article 1536.
  DOI: 10.3390/math14091536

▌ Scientific dissemination & public outreach

Participation in international conferences

• M. Donaire, G. Ortega, E. M. Garzón, F. Orts, R. Paulavičius, E. Filatovas.
  Halving the number of qubits of quantum comparators.
  15th International Conference on Parallel Processing and Applied Mathematics (PPAM 2024), 8–11 September 2024, Ostrava, Czech Republic.

• M. Marcozzi.
  Recent Advances in Quantum Machine Learning Applications.
  Advanced Properties and Processes in Optoelectronic Materials and Systems (APROPOS 19), Special Section dedicated to Quantum Technologies, 1–4 October 2024, Vilnius, Lithuania.

• R. Paulavičius.
  European Quantum Technologies Conference 2025, 10–12 November 2025, Copenhagen, Denmark. Member of the Lithuanian Quantum Technologies delegation.

• M. Marcozzi, S. Puertas-Martín, R. Paulavičius, A. Camara-Artigas, J. L. Redondo, E. Filatovas.
  Poster: Quantum Shape Similarity for Drug Discovery.
  29th Annual Quantum Information Processing Conference (QIP 2026), 24-30 January 2026, Riga, Latvia.

• U. Liaubaitė.
  Poster: Prospects of Quantum Error Mitigation for Quantum Signal Processing.
  QSim2026 – International Conference on Quantum Simulation, 11-14 August 2026, Amsterdam, Netherlands.

Seminars and scientific talks

• U. Liaubaitė.
  Talk: CSS codes to enhance magnetic field sensing.
  Quantum Information Group (QIG) Seminar, Institute of Theoretical Physics, Leibniz University Hannover, 18 August 2026, Hannover, Germany.

National strategic documents

• Preparation of the official Lithuanian Quantum Technologies Roadmap - Quantum Agenda and its presentation at a dedicated event on 28 February 2025:
  • English version
  • Lithuanian version

▌ Quantum technology hackathons

Participation in international quantum technology hackathons

• 1st place (2025) – “Quantum QL Future Hackathon”, Poznań, Poland.
  Article (TV3): https://www.tv3.lt/naujiena/automanas/lietuviu-studentu-komanda-triumfavo-kvantiniu-skaiciavimu-hakatone-pasiule-sprendima-tvariam-elektromobiliu-krovimui-n1414423

• 2nd place (2024) – “Quantum QL Future Hackathon”, Poznań, Poland.
  Article (LRT): https://www.lrt.lt/naujienos/mokslas-ir-it/11/2256211/lietuviai-iskovojo-sidabra-tarptautiniame-kvantiniu-technologiju-hakatone

• Special prize (2025) – “QuantumBoost2025”, Vilnius, Lithuania.
  Announcement (LinkedIn – Quantum Lithuania): https://www.linkedin.com/posts/quantum-lithuania_quantumboost2025-activity-7396594796217257984-_-PR

Organization of quantum technology hackathons

• Organisation of QuantumBoost2025, the first quantum technology hackathon in Lithuania and the Baltic region.

  • M. Marcozzi – main task designer and mentor of hackathon teams.

  • R. Paulavičius – member of the evaluation committee and one of the main organisers of the event.

▌ Contribution to programme objectives & external funding

The project contributes to the programme objective of strengthening the quality of R&D at Lithuanian universities by increasing high-level research outputs, attracting and developing researchers, and securing external research funding.

Successful funding applications

1. International project
   Quantum Excellence Centre for Quantum-Enhanced Applications (QEC4QEA), funded under the HORIZON-EUROHPC-JU-2023-QEC-05 call.
   Vilnius University is one of 18 partners.
   VU budget: EUR 370,063.

2. National project
   Quantum algorithms for advanced logistics: optimisation of transport routing, pickup-delivery and electric vehicle charging infrastructure, under the targeted programme “Informacinės technologijos mokslo ir žinių visuomenės plėtrai” (Information Technologies for the Development of Science and Knowledge Society).
   Budget: EUR 299,992.