Dissipative Floquet Dynamics: from Steady State to Measurement Induced Criticality in Trapped-ion Chains

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dc.citation.articleNumber638en_US
dc.citation.journalTitleQuantumen_US
dc.citation.volumeNumber6en_US
dc.contributor.authorSierant, Piotren_US
dc.contributor.authorChiriacò, Giulianoen_US
dc.contributor.authorSurace, Federica M.en_US
dc.contributor.authorSharma, Shraddhaen_US
dc.contributor.authorTurkeshi, Xheken_US
dc.contributor.authorDalmonte, Marcelloen_US
dc.contributor.authorFazio, Rosarioen_US
dc.contributor.authorPagano, Guidoen_US
dc.date.accessioned2022-04-28T14:29:11Zen_US
dc.date.available2022-04-28T14:29:11Zen_US
dc.date.issued2022en_US
dc.description.abstractQuantum systems evolving unitarily and subject to quantum measurements exhibit various types of non-equilibrium phase transitions, arising from the competition between unitary evolution and measurements. Dissipative phase transitions in steady states of time-independent Liouvillians and measurement induced phase transitions at the level of quantum trajectories are two primary examples of such transitions. Investigating a many-body spin system subject to periodic resetting measurements, we argue that many-body dissipative Floquet dynamics provides a natural framework to analyze both types of transitions. We show that a dissipative phase transition between a ferromagnetic ordered phase and a paramagnetic disordered phase emerges for long-range systems as a function of measurement probabilities. A measurement induced transition of the entanglement entropy between volume law scaling and sub-volume law scaling is also present, and is distinct from the ordering transition. The two phases correspond to an error-correcting and a quantum-Zeno regimes, respectively. The ferromagnetic phase is lost for short range interactions, while the volume law phase of the entanglement is enhanced. An analysis of multifractal properties of wave function in Hilbert space provides a common perspective on both types of transitions in the system. Our findings are immediately relevant to trapped ion experiments, for which we detail a blueprint proposal based on currently available platforms.en_US
dc.identifier.citationSierant, Piotr, Chiriacò, Giuliano, Surace, Federica M., et al.. "Dissipative Floquet Dynamics: from Steady State to Measurement Induced Criticality in Trapped-ion Chains." <i>Quantum,</i> 6, (2022) Quantum: https://doi.org/10.22331/q-2022-02-02-638.en_US
dc.identifier.digitalq-2022-02-02-638en_US
dc.identifier.doihttps://doi.org/10.22331/q-2022-02-02-638en_US
dc.identifier.urihttps://hdl.handle.net/1911/112191en_US
dc.language.isoengen_US
dc.publisherQuantumen_US
dc.rightsThis Paper is published in Quantum under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleDissipative Floquet Dynamics: from Steady State to Measurement Induced Criticality in Trapped-ion Chainsen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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