Tunable anisotropic quantum rabi model via a Magnon-Spin-Qubit ensemble
Entidad
UAM. Departamento de Física Teórica de la Materia CondensadaEditor
American Physical SocietyFecha de edición
2021-12-02Cita
10.1103/PhysRevApplied.16.064008
Physical Review Applied 16.6 (2021): 064008
ISSN
2331-7019 (online)DOI
10.1103/PhysRevApplied.16.064008Proyecto
Gobierno de España. CEX2018-000805-MVersión del editor
https://doi.org/10.1103/PhysRevApplied.16.064008Materias
Anisotropy; Magnets; Quantum Entanglement; Quantum Optics; Qubits; FísicaDerechos
© 2021 American Physical SocietyResumen
The ongoing rapid progress towards quantum technologies relies on new hybrid platforms optimized
for specific quantum computation and communication tasks, and researchers are striving to achieve such
platforms. We study theoretically a spin qubit exchange-coupled to an anisotropic ferromagnet that hosts
magnons with a controllable degree of intrinsic squeezing. We find this system to physically realize the
quantum Rabi model from the isotropic to the Jaynes-Cummings limit with coupling strengths that can
reach the deep-strong regime. We demonstrate that the composite nature of the squeezed magnon enables
concurrent excitation of three spin qubits coupled to the same magnet. Thus, three-qubit GreenbergerHorne-Zeilinger and related states needed for implementing Shor’s quantum error-correction code can be
robustly generated. Our analysis highlights some unique advantages offered by this hybrid platform, and
we hope that it will motivate corresponding experimental efforts
Lista de ficheros
Google Scholar:Skogvoll, Ida C.
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Lidal, Jonas
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Danon, Jeroen
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Kamra, Akashdeep
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