Light-induced collective pseudospin precession resonating with Higgs mode in a superconductor

  title={Light-induced collective pseudospin precession resonating with Higgs mode in a superconductor},
  author={Ryusuke Matsunaga and Naoto Tsuji and Hiroyuki Fujita and Arata Sugioka and Kazumasa Makise and Yoshinori Uzawa and Hirotaka Terai and Zhen Wang and Hideo Aoki and Ryo Shimano},
Superconductors host collective modes that can be manipulated with light. We show that a strong terahertz light field can induce oscillations of the superconducting order parameter in NbN with twice the frequency of the terahertz field. The result can be captured as a collective precession of Anderson’s pseudospins in ac driving fields. A resonance between the field and the Higgs amplitude mode of the superconductor then results in large terahertz third-harmonic generation. The method we… CONTINUE READING
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Nambu , Axial Vector Current Conservation in Weak Interactions

  • Y.
  • Science
  • 2014

Amplitude or Higgs modes in d - wave superconductors

  • C. M. Varma Y. Barlas
  • Phys . Rev . Lett .
  • 2013

Raman Scattering by SuperconductingGap Excitations and Their Coupling to ChargeDensity Waves

  • M. V. Klein R. Sooryakumar
  • Phys . Rev . Lett .
  • 2013

Intense Terahertz PulseInduced Nonlinear Responses in Carbon Nanotubes

  • S. Watanabe R. Shimano, R. Matsunaga
  • Phys . Rev . Lett .
  • 2012

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