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Cooling of a levitated nanoparticle to the motional quantum ground state

Delić, Uroš ; Reisenbauer, Manuel ; Dare, Kahan ; Grass, David ; Vuletić, Vladan ; Kiesel, Nikolai ; Aspelmeyer, Markus

Science (American Association for the Advancement of Science), 2020-02, Vol.367 (6480), p.892-895 [Periódico revisado por pares]

United States: The American Association for the Advancement of Science

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  • Título:
    Cooling of a levitated nanoparticle to the motional quantum ground state
  • Autor: Delić, Uroš ; Reisenbauer, Manuel ; Dare, Kahan ; Grass, David ; Vuletić, Vladan ; Kiesel, Nikolai ; Aspelmeyer, Markus
  • Assuntos: Cooling ; Lasers ; Mechanics (Physics) ; Nanoparticles ; Quantum Mechanics ; Scientific Concepts
  • É parte de: Science (American Association for the Advancement of Science), 2020-02, Vol.367 (6480), p.892-895
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Quantum control of complex objects in the regime of large size and mass provides opportunities for sensing applications and tests of fundamental physics. The realization of such extreme quantum states of matter remains a major challenge. We demonstrate a quantum interface that combines optical trapping of solids with cavity-mediated light-matter interaction. Precise control over the frequency and position of the trap laser with respect to the optical cavity allowed us to laser-cool an optically trapped nanoparticle into its quantum ground state of motion from room temperature. The particle comprises 10 atoms, similar to current Bose-Einstein condensates, with the density of a solid object. Our cooling technique, in combination with optical trap manipulation, may enable otherwise unachievable superposition states involving large masses.
  • Editor: United States: The American Association for the Advancement of Science
  • Idioma: Inglês
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