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Gravitational waves detection with exceptional points in micro cavities

Authors
  • Liu, Jian
  • Chen, Lei
  • He, Fei
  • Zhu, Ka-Di
Publication Date
Jan 26, 2020
Source
INSPIRE-HEP
Keywords
License
Unknown
External links

Abstract

Here we propose a new gravitational waves(GWs) detector in broad frequency band, which is operated at exceptional points(EPs) in micro cavities. The detected signal is an eigenfrequency split of the mechanical modes caused by the spatial strain. Due to the complex square root topology near the EP, the splitting is greatly enhanced for sufficiently small perturbations. Compared to current strategies, it can be achieved at the room temperature and has advantages in micro device scale, wide frequency band and higher sensitivity.

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