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research article

Hybrid ground-state quantum algorithms based on neural Schrödinger forging

de Schoulepnikoff, Paulin
•
Kiss, Oriel
•
Vallecorsa, Sofia
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April 4, 2024
Physical Review Research

Entanglement forging based variational algorithms leverage the bipartition of quantum systems for addressing ground-state problems. The primary limitation of these approaches lies in the exponential summation required over the numerous potential basis states, or bitstrings, when performing the Schmidt decomposition of the whole system. To overcome this challenge, we propose a method for entanglement forging employing generative neural networks to identify the most pertinent bitstrings, eliminating the need for the exponential sum. Through empirical demonstrations on systems of increasing complexity, we show that the proposed algorithm achieves comparable or superior performance compared to the existing standard implementation of entanglement forging. Moreover, by controlling the amount of required resources, this scheme can be applied to larger as well as non-permutation-invariant systems, where the latter constraint is associated with the Heisenberg forging procedure. We substantiate our findings through numerical simulations conducted on spin models exhibiting one-dimensional rings, two-dimensional triangular lattice topologies, and nuclear shell model configurations.

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Type
research article
DOI
10.1103/PhysRevResearch.6.023021
Web of Science ID

WOS:001205391900004

Author(s)
de Schoulepnikoff, Paulin
Kiss, Oriel
Vallecorsa, Sofia
Carleo, Giuseppe  
Grossi, Michele
Date Issued

2024-04-04

Publisher

Amer Physical Soc

Published in
Physical Review Research
Volume

6

Issue

2

Article Number

023021

Subjects

Physical Sciences

•

Equivalence

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
CQSL  
FunderGrant Number

CERN through the CERN Quantum Tech- nology Initiative

Available on Infoscience
May 1, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/207728
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