Parity-Time Symmetric MEMS
Abstrak
Parity (P)-Time (T) symmetry is the concept of quantum mechanics and has been extended to classical systems because of the mathematical equivalence between the Schrödinger equation and the classical wave equation. PT-symmetric systems are invariant under the joint parity and time reversal operation. They have two distinguished regimes: an exact PT-symmetric regime with real eigenvalues and a broken PT-symmetric regime with complex-conjugate eigenvalues. An exceptional point (EP) at which the eigenvalues and corresponding eigenvectors simultaneously coalesce separates the exact regime from the broken regime. Systems at the EPs exhibit a strong response to a small perturbation. Therefore, EPs-based sensors have recently received significant attention in optics and photonics, acoustics, and electronics. Our group has applied PT-symmetry to MEMS (Microelectromchanical Systems) design, leading to enhanced sensing of micromachined silicon resonators and piezoelectric resonators, respectively. This article presents the preliminary results of PT-symmetric MEMS.
Penulis (1)
Qing-An Huang
Akses Cepat
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Cek di sumber asli →- Tahun Terbit
- 2022
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- en
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- DOI
- 10.1109/ICSICT55466.2022.9963287
- Akses
- Open Access ✓