Variational quantum simulation using non-Gaussian continuous-variable systems
This work introduces an approach to quantum simulation by leveraging continuous-variable systems within a photonic hardware-inspired framework. The primary focus is on simulating static properties of the ground state of Hamiltonians associated with infinite-dimensional systems, such as those arising in quantum field theory. We present a continuous-variable variational quantum eigensolver compatible with state-of-the-art photonic technology. The framework we introduce allows us to compare discrete and continuous variable systems without introducing a truncation of the Hilbert space, opening the possibility to investigate the scenarios where one of the two formalisms performs better. We apply it to the study of static properties of the Bose-Hubbard model and demonstrate its effectiveness and practicality, highlighting the potential of continuous-variable quantum simulations in addressing complex problems in quantum physics. Published by the American Physical Society 2024
Authors
- Paolo Stornati (ORCID: https://orcid.org/0000-0003-4708-9340)
- Antonio Acín (ORCID: https://orcid.org/0000-0002-1355-3435)
- Valentina Parigi (ORCID: https://orcid.org/0000-0002-0779-1971)
- Ulysse Chabaud (ORCID: https://orcid.org/0000-0003-0135-9819)
- Federico Centrone (ORCID: https://orcid.org/0000-0001-6116-0516)
- Alexandre Dauphin (ORCID: https://orcid.org/0000-0003-4996-2561)
Institutions
- Institució Catalana de Recerca i Estudis Avançats (ES)
- Institute of Photonic Sciences (ES)
- Université Paris Sciences et Lettres (FR)
- Laboratoire Kastler Brossel (FR)
- Sorbonne Université (FR)
- Barcelona Institute of Science and Technology (ES)
- Laboratoire Médiations (FR)
- Institute of Science and Technology
Publication Details
- Journal
- Physical Review Research
- Published
- 2024-11-26
- DOI
- https://doi.org/10.1103/physrevresearch.6.043212
- Citations
- 3
- Primary Topic
- Quantum Information and Cryptography
- Type
- article
- Field-Weighted Citation Impact
- 1.04
Funders
- “la Caixa” Foundation
- Centres de Recerca de Catalunya
- European Resuscitation Council
- Fundación Carmen y Severo Ochoa
- European Commission
- Generalitat de Catalunya
- Narodowe Centrum Nauki
- Barcelona Supercomputing Center
- QuantERA
- HORIZON EUROPE Framework Programme
- Agència de Gestió d'Ajuts Universitaris i de Recerca
- Horizon 2020
- European Regional Development Fund
- Agencia Estatal de Investigación