Acoustic topological adiabatic passage via a level crossing

Ya Xi Shen, Long Sheng Zeng, Zhi Guo Geng, De Gang Zhao, Yu Gui Peng, Jie Zhu, Xue Feng Zhu

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1 Citation (Scopus)

Abstract

Stimulated adiabatic passage has been extensively studied to achieve robust and selective population transfer in quantum systems. Recently, the quantum-classic analogy has been rapidly developing and can be considered responsible for the implementation of the adiabatic transfer of sound energy in cavity chain systems. In this article, we investigate the adiabatic transfer of sound energy between two topological end states in the Su-Schrieffer-Heeger (SSH) cavity chain, which can be considered to be the acoustic analog of the quantum chirped-pulse excitation. The topological adiabatic passage in SSH cavity chain has two categories. When the single-cavity resonance frequencies on the sublattices A and B in the SSH cavity chain do not switch their spectrum positions, the topologically protected adiabatic evolution results in the returning passage of the sound excited in one end cavity. When a level crossing with single-cavity resonance frequencies on the sublattices A and B exhibits switch in the frequency spectrum, acoustic energy is observed to be topologically pumped between the two end cavities of the SSH chain.

Original languageEnglish
Article number244302
JournalScience China: Physics, Mechanics and Astronomy
Volume64
Issue number4
DOIs
Publication statusPublished - Apr 2021

Keywords

  • acoustic adiabatic passage
  • level crossing
  • topological end state

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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