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dc.contributor.advisorLukin, Mikhail D
dc.contributor.authorZhou, Hengyun
dc.date.accessioned2022-06-07T06:20:40Z
dc.date.created2022
dc.date.issued2022-05-12
dc.date.submitted2022-05
dc.identifier.citationZhou, Hengyun. 2022. Quantum Many-Body Physics and Quantum Metrology with Floquet-Engineered Interacting Spin Systems. Doctoral dissertation, Harvard University Graduate School of Arts and Sciences.
dc.identifier.other29209366
dc.identifier.urihttps://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37372160*
dc.description.abstractImproved control and manipulation of quantum systems lies at the heart of modern quantum science and technology, with broad applications ranging from quantum metrology to quantum information science and many-body physics. In this thesis, I will introduce a novel framework for robust Hamiltonian engineering in interacting spin systems, which enables the efficient design of Floquet engineering pulse sequences for qubit and qudit systems that out-perform state-of-the-art control methods by orders of magnitude. As applications of this framework, we utilize a high density ensemble of nitrogen vacancy (NV) centers in diamond, and demonstrate significantly improved control over the disordered, interacting many-body spin system. This enabled the first solid state spin ensemble quantum sensor operating beyond the sensitivity limit imposed by interactions between sensing particles, as well as the observation and understanding of novel dynamical many-body phenomena, including discrete time crystalline order and thermalization dynamics in long-range interacting XXZ spin models.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dash.licenseLAA
dc.subjectHamiltonian engineering
dc.subjectNitrogen vacancy center
dc.subjectQuantum control
dc.subjectQuantum many-body physics
dc.subjectQuantum metrology
dc.subjectPhysics
dc.titleQuantum Many-Body Physics and Quantum Metrology with Floquet-Engineered Interacting Spin Systems
dc.typeThesis or Dissertation
dash.depositing.authorZhou, Hengyun
dc.date.available2022-06-07T06:20:40Z
thesis.degree.date2022
thesis.degree.grantorHarvard University Graduate School of Arts and Sciences
thesis.degree.levelDoctoral
thesis.degree.namePh.D.
dc.contributor.committeeMemberPark, Hongkun
dc.contributor.committeeMemberVishwanath, Ashvin
dc.contributor.committeeMemberCappellaro, Paola
dc.type.materialtext
thesis.degree.departmentPhysics
dc.identifier.orcid0000-0002-2148-8856
dash.author.emailhyharryzhou@gmail.com


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