Work

Efficient higher-order matrix product operators for time evolution

Year: 2024

Type: article

Abstract: We introduce a systematic construction of higher-order matrix product operator (MPO) approximations of the time evolution operator for generic (short and long range) one-dimensional Hamiltonians. We demonstrate the utility of our construction, by showing an order of magnitude speedup in simulation cost compared to conventional first-order MPO time evolution schemes.

Source: SciPost Physics

DOI: 10.21468/scipostphys.17.5.135

Authors: Maarten Van Damme, Jutho Haegeman, Ian McCulloch, Laurens Vanderstraeten

Institutions: Ghent University, The University of Queensland, National Tsing Hua University, Université Libre de Bruxelles

Language: English

Topic: Quantum many-body systems

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: National Science and Technology Council, Fonds Wetenschappelijk Onderzoek, European Research Council

Awards: G628644121, G7697557110, G8696888692, G8810372356