Entangling nuclear spins in distant quantum dots via an electron bus

  • We propose a protocol for the deterministic generation of entanglement between two ensembles of nuclear spins surrounding two distant quantum dots. The protocol relies on the injection of electrons with definite polarization, their sequential interaction with the nuclear ensembles of each quantum dot for a short time, and the coherent transfer of each electron from one quantum dot to the other. Computing the exact dynamics for small systems, and using an effective master equation and approximate nonlinear equations of motion for larger systems, we are able to confirm that our protocol indeed produces entanglement for both homogeneous and inhomogeneous systems. Last, we analyze the feasibility of our protocol in several current experimental platforms.

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Author:Miguel Bello, Mónica BenitoORCiDGND, Martin J. A. Schuetz, Gloria Platero, Géza Giedke
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/104296
Parent Title (English):Physical Review Applied
Publisher:American Physical Society (APS)
Place of publication:College Park, MD
Year of first Publication:2022
Publishing Institution:Universität Augsburg
Release Date:2023/05/10
First Page:014009
Institutes:Mathematisch-Naturwissenschaftlich-Technische Fakultät
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Professur für Quantencomputing und Quantengeräte
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):CC-BY 4.0: Creative Commons: Namensnennung (mit Print on Demand)