ORCID Profile
0000-0001-9005-7761
Current Organisations
University Of Strathclyde
,
University of Oxford
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Publisher: American Physical Society (APS)
Date: 23-09-2019
Publisher: American Physical Society (APS)
Date: 23-08-2023
Publisher: SPIE
Date: 25-02-2020
DOI: 10.1117/12.2552602
Publisher: Springer Science and Business Media LLC
Date: 04-09-2017
DOI: 10.1038/NPHYS4244
Publisher: American Physical Society (APS)
Date: 19-05-2021
Publisher: American Physical Society (APS)
Date: 21-03-2017
Publisher: MDPI AG
Date: 24-03-2022
DOI: 10.3390/SYM14040666
Abstract: We investigate the emergence of different effective geometries in stochastic Clifford circuits with sparse coupling. By changing the probability distribution for choosing two-site gates as a function of distance, we generate sparse interactions that either decay or grow with distance as a function of a single tunable parameter. Tuning this parameter reveals three distinct regimes of geometry for the spreading of correlations and growth of entanglement in the system. We observe linear geometry for short-range interactions, treelike geometry on a sparse coupling graph for long-range interactions, and an intermediate fast scrambling regime at the crossover point between the linear and treelike geometries. This transition in geometry is revealed in calculations of the subsystem entanglement entropy and tripartite mutual information. We also study emergent lightcones that govern these effective geometries by teleporting a single qubit of information from an input qubit to an output qubit. These tools help to analyze distinct geometries arising in dynamics and correlation spreading in quantum many-body systems.
Publisher: American Physical Society (APS)
Date: 03-03-2022
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Andrew Daley.