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Entanglement in the quantum phases of an unfrustrated Rydberg atom array

O'Rourke, Matthew J. and Chan, Garnet Kin-Lic (2022) Entanglement in the quantum phases of an unfrustrated Rydberg atom array. . (Unpublished)

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We report on the ground state phase diagram of interacting Rydberg atoms in the unfrustrated square lattice array. Using new tensor network algorithms, we scale to large systems in two dimensions while including all long-range interactions, revealing the phases in the bulk and their analogs in accessible finite arrays. We find a greatly altered phase diagram from earlier numerical and experimental studies, and in particular, we uncover an emergent entangled quantum nematic phase that appears in the absence of frustration. Broadly our results yield a conceptual guide for future experiments, while our techniques provide a blueprint for converging numerical studies in other lattices.

Item Type:Report or Paper (Discussion Paper)
Related URLs:
URLURL TypeDescription Paper
O'Rourke, Matthew J.0000-0002-5779-2577
Chan, Garnet Kin-Lic0000-0001-8009-6038
Additional Information:Attribution 4.0 International (CC BY 4.0). M.J.O. acknowledges financial support from a US National Science Foundation Graduate Research Fellowship via grant DEG-1745301. G.K.C. acknowledges support from the US National Science Foundation via grant no. 2102505. Computations were conducted in the Resnick High Performance Computing Center, supported by the Resnick Sustainability Institute at the California Institute of Technology. DMRG calculations were performed with the ITensor library [40]. PEPS calculations were performed using quimb [41] with PyTorch as the backend [42].
Group:Resnick Sustainability Institute
Funding AgencyGrant Number
NSF Graduate Research FellowshipDGE-1745301
Record Number:CaltechAUTHORS:20220124-192927318
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:113072
Deposited By: George Porter
Deposited On:24 Jan 2022 20:12
Last Modified:24 Jan 2022 20:12

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