Long Distance Entanglement of Spin Qubits via Ferromagnet

Abstract

We propose a mechanism of coherent coupling between distant spin qubits interacting dipolarly with a ferromagnet. We derive an effective two-spin interaction Hamiltonian and find a regime where the dynamics is coherent. Finally, we present a sequence for the implementation of the entangling controlled-not gate and estimate the corresponding operation time to be a few tens of nanoseconds. A particularly promising application of our proposal is to atomistic spin qubits such as silicon-based qubits and nitrogen-vacancy centers in diamond to which existing coupling schemes do not apply.

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Document Details

Document Type
Technical Report
Publication Date
Dec 04, 2013
Accession Number
AD1057261

Entities

People

  • Daniel Loss
  • Fabio L. Pedrocchi
  • Luka Trifunovic

Organizations

  • University of Basel

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Curie Temperature
  • Dynamics
  • Ferromagnetic Resonance
  • Frequency
  • Information Processing
  • Integrals
  • Magnetic Fields
  • Nuclear Spins
  • Power Spectra
  • Quantum Computing
  • Quantum Dots
  • Quantum Electrodynamics
  • Quantum Field Theory
  • Quantum Information
  • Quantum Properties
  • Spectra
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Quantum Science - Quantum Dots