Hallam, A., Desaules, J.-Y. and Papić, Z. (2023) Embedding semiclassical periodic orbits into chaotic many-body Hamiltonians. Physical Review Letters, 131 (11). 110401. ISSN 0031-9007
Abstract
Protecting coherent quantum dynamics from a chaotic environment is key to realizations of fragile many-body phenomena and their applications in quantum technology. We present a general construction that allows to embed a desired periodic orbit into a family of non-integrable many-body Hamiltonians, whose dynamics is otherwise chaotic. Our construction is based on time dependent variational principle that projects quantum dynamics onto a manifold of low-entangled states, and it generalizes the earlier approaches for embedding non-thermal eigenstates, known as quantum many-body scars, into thermalizing spectra. By designing terms that suppress "leakage" of the dynamics outside the variational manifold, we engineer families of Floquet models that host exact scarred dynamics, as we illustrate using a driven Affleck-Kennedy-Lieb-Tasaki model and a recent experimental realization of scars in a dimerized superconducting qubit chain.
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Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | This article is published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Theoretical Physics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 09 Oct 2023 15:35 |
Last Modified: | 16 Nov 2023 12:40 |
Published Version: | https://journals.aps.org/prl/abstract/10.1103/Phys... |
Status: | Published |
Publisher: | American Physical Society |
Identification Number: | 10.1103/PhysRevLett.131.110401 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:202958 |
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