Variational quantum simulation using non-Gaussian continuous-variable systems

Fuente: arXiv
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Hauptverfasser: Stornati, Paolo, Acin, Antonio, Chabaud, Ulysse, Dauphin, Alexandre, Parigi, Valentina, Centrone, Federico
Format: Preprint
Veröffentlicht: 2023
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author Stornati, Paolo
Acin, Antonio
Chabaud, Ulysse
Dauphin, Alexandre
Parigi, Valentina
Centrone, Federico
author_facet Stornati, Paolo
Acin, Antonio
Chabaud, Ulysse
Dauphin, Alexandre
Parigi, Valentina
Centrone, Federico
contents This work introduces a novel 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.
format Preprint
id arxiv_https___arxiv_org_abs_2310_15919
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Variational quantum simulation using non-Gaussian continuous-variable systems
Stornati, Paolo
Acin, Antonio
Chabaud, Ulysse
Dauphin, Alexandre
Parigi, Valentina
Centrone, Federico
Quantum Physics
High Energy Physics - Lattice
This work introduces a novel 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.
title Variational quantum simulation using non-Gaussian continuous-variable systems
topic Quantum Physics
High Energy Physics - Lattice
url https://arxiv.org/abs/2310.15919