The Photon-Assisted Dynamic Nuclear Polarization Effect in a Double Quantum Dot

Abstract

We report on the Overhauser shift (OHS) of electric dipole spin resonance peaks in the reverse direction to that previously reported. Measuring electric dipole spin resonance in a double quantum dot, we observe two resonance peaks reflecting a Zeeman energy difference between the two quantum dots, and find that the dependence of the peak position on microwave power is different for each dot. The perturbation theory for hybridizing the flip-flop and photon-assisted tunneling mechanisms is discussed and is found to successfully explain the power dependence. This theory can also consistently explain the OHS in both directions, explaining the experimental results previously reported. Our results reveal the bidirectionality of OHSs and this is expected to play an important part in the development of effective nuclear spin squeezing techniques.

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Document Details

Document Type
Technical Report
Publication Date
Dec 10, 2012
Accession Number
AD1057253

Entities

People

  • Michel Pioro-ladriere
  • Seigo Tarucha
  • Toshiaki Obata
  • Yasuhiro Tokura

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Crossings
  • Electric Fields
  • Electron Gas
  • Electron Spin Resonance
  • Electrons
  • Energy Gaps
  • Equations
  • Frequency
  • Magnetic Fields
  • Nuclear Spins
  • Perturbation Theory
  • Quantum Dots
  • Quantum Properties
  • Resonance
  • Spin Resonance
  • Spin States
  • Standards

Fields of Study

  • Physics

Readers

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

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots