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PreprintCC BY-NC-SA 4.0arXiv

Nonlinear dynamics in an artificial feedback spin maser II: dependence on feedback configurations and time crystal effects

  • Lan Wu
  • Qingchang Li
  • Weiyu Wang
  • Qianjin Ma
  • Guobin Liu
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Abstract

Artificial feedback spin masers exhibit rich nonlinear dynamics, yet a systematic framework for understanding and controlling their behaviors remains elusive. In this paper, we consider the polarity and geometric configuration of the feedback field as important control parameters for studying the nonlinear dynamics of spin masers. By cooperatively tuning the strength and phase delay of feedback field, we investigate the spin dynamics at various configurations of the feedback field. Periodic, quasiperiodic and chaotic spin oscillations are uncovered. Specifically, a unique spin oscillation mode akin to the time crystal effects emerges within a certain parameter regime. This work presents a different viewpoint understanding the nonlinear dynamics of spin masers including the time crystal.

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Cite

BibTeXRIS
BibTeX
@misc{wu2026nonlinear,
  title = {{Nonlinear dynamics in an artificial feedback spin maser II: dependence on feedback configurations and time crystal effects}},
  author = {Lan Wu and Qingchang Li and Weiyu Wang and Qianjin Ma and Guobin Liu},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.08359},
  eprint = {2609.08359},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.08359},
  note = {CC BY-NC-SA 4.0},
}
RIS
TY  - UNPB
TI  - Nonlinear dynamics in an artificial feedback spin maser II: dependence on feedback configurations and time crystal effects
AU  - Lan Wu
AU  - Qingchang Li
AU  - Weiyu Wang
AU  - Qianjin Ma
AU  - Guobin Liu
PY  - 2026
DA  - 2026/09/08
PB  - arXiv
DO  - 10.48550/arxiv.2609.08359
UR  - https://arxiv.org/abs/2609.08359
AB  - Artificial feedback spin masers exhibit rich nonlinear dynamics, yet a systematic framework for understanding and controlling their behaviors remains elusive. In this paper, we consider the polarity and geometric configuration of the feedback field as important control parameters for studying the nonlinear dynamics of spin masers. By cooperatively tuning the strength and phase delay of feedback field, we investigate the spin dynamics at various configurations of the feedback field. Periodic, quasiperiodic and chaotic spin oscillations are uncovered. Specifically, a unique spin oscillation mode akin to the time crystal effects emerges within a certain parameter regime. This work presents a different viewpoint understanding the nonlinear dynamics of spin masers including the time crystal.
ER  -