Optical Energy-Difference Conservation in a Synthetic Anti-PT-Symmetric System
SCIE
- Title
- Optical Energy-Difference Conservation in a Synthetic Anti-PT-Symmetric System
- Authors
- SEBAE, PARK; DONGJIN, LEE; PARK, KYUNG DEUK; SHIN, HEEDEUK; Choi, Youngsun; Yoon, Jae Woong
- Date Issued
- 2021-08
- Publisher
- AMER PHYSICAL SOC
- Abstract
- Anti-parity-time (APT) symmetry is associated with various effects beyond the fundamental limitations implied in the standard Hermitian-Hamiltonian dynamics. Here, we create an optical APT-symmetric system in a synthetic frequency domain using a conventional fiber without intrinsic gain or loss and experimentally reveal photonic APT-symmetric effects, including energy-difference conservation and synchronized power oscillation, which have not yet been confirmed experimentally in the optical domain. The optical fiber-based APT-symmetric system has a long interaction length because of its negligible loss, and the APT-symmetric Hamiltonian is precisely tunable with optical pumping density and phase mismatch. On this basis, we observe the phase transition at exceptional points, energy-difference conservation, and synchronized power oscillation. Our results provide a robust theoretical and experimental framework connecting the emerging non-Hermitian physics with technologically important nonlinear fiberoptic interactions.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/107265
- DOI
- 10.1103/PhysRevLett.127.083601
- ISSN
- 0031-9007
- Article Type
- Article
- Citation
- PHYSICAL REVIEW LETTERS, vol. 127, no. 8, 2021-08
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- There are no files associated with this item.
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