Shallow quantum circuits are robust hunters for quantum many-body scars
Quantum Physics
2024-01-18 v1
Abstract
Presently, noisy intermediate-scale quantum computers encounter significant technological challenges that make it impossible to generate large amounts of entanglement. We leverage this technological constraint as a resource and demonstrate that a shallow variational eigensolver can be trained to successfully target quantum many-body scar states. Scars are area-law high-energy eigenstates of quantum many-body Hamiltonians, which are sporadic and immersed in a sea of volume-law eigenstates. We show that the algorithm is robust and can be used as a versatile diagnostic tool to uncover quantum many-body scars in arbitrary physical systems.
Keywords
Cite
@article{arxiv.2401.09279,
title = {Shallow quantum circuits are robust hunters for quantum many-body scars},
author = {Gabriele Cenedese and Maria Bondani and Alexei Andreanov and Matteo Carrega and Giuliano Benenti and Dario Rosa},
journal= {arXiv preprint arXiv:2401.09279},
year = {2024}
}
Comments
11 pages, 11 figures