Coherent spin-phonon coupling
Abstract
Spin qubits in silicon quantum dots are a promising platform for quantum information processing, because they possess extremely long coherence times, exceeding 10 milliseconds in some cases.However, transmitting quantum information between spins over long distances remains a challenge. Here, we propose to take major steps toward overcoming this challenge. Our goal is to achieve for the first-time strong coupling between a single electron spin in a silicon quantum dot and a high-quality-factor phonon resonator. The specific objectives of this work are (1) to fabricate and characterize high-quality factor bulk- and surface-acoustic wave resonators, (2) to integrate a phonon resonator and a quantum dot to achieve strong charge-phonon coupling via piezoelectricity, and (3) to incorporate a synthetic spin-orbit field to generate strong spin-phonon coupling. The key innovations of this work are the use of novel high-quality-factor bulk- and surface-acoustic wave phonon resonators as candidate quantum links specifically designed toachieve faithful quantum state transduction.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 17, 2020
- Source ID
- N000142012424
Entities
People
- John M Nichol
Organizations
- Office of Naval Research
- United States Navy
- University of Rochester