Nonlocal correlations in noisy multiqubit systems simulated using matrix product operators - CEA - Université Paris-Saclay Access content directly
Journal Articles SciPost Physics Core Year : 2023

Nonlocal correlations in noisy multiqubit systems simulated using matrix product operators

Abstract

We introduce an open-source solver for the Lindblad master equation, based on matrix product states and matrix product operators. Using this solver we study the dynamics of tens of interacting qubits with different connectivities, focusing on a problem where an edge qubit is being continuously driven on resonance, which is a fundamental operation in quantum devices. Because of the driving, induced quasiparticles propagate through the qubits until the system reaches a steady state due to the incoherent terms. We find that with alternating-frequency qubits whose interactions with their off-resonant neighbors appear weak, the tunneling quasiparticles lead to large correlations between distant qubits in the system. Some two-qubit correlation functions are found to increase as a function of distance in the system (in contrast to the typical decay with distance), peaking on the two edge qubits farthest apart from each other.
Fichier principal
Vignette du fichier
SciPostPhysCore_6_2_037.pdf (2.11 Mo) Télécharger le fichier
Origin : Publisher files allowed on an open archive
licence : CC BY - Attribution

Dates and versions

hal-03621347 , version 1 (18-04-2024)

Licence

Attribution

Identifiers

Cite

Haggai Landa, Grégoire Misguich. Nonlocal correlations in noisy multiqubit systems simulated using matrix product operators. SciPost Physics Core, 2023, 6 (2), pp.037. ⟨10.21468/SciPostPhysCore.6.2.037⟩. ⟨hal-03621347⟩
41 View
2 Download

Altmetric

Share

Gmail Facebook X LinkedIn More