Revealing spontaneous symmetry breaking in continuous time crystals
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2024
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866913425007837184 |
|---|---|
| author | Tang, Yuanjiang Wang, Chenyang Liu, Bei Peng, Jin Liang, Chao Li, Yaohua Zhao, Xian Lu, Cuicui Zhang, Shuang Liu, Yong-Chun |
| author_facet | Tang, Yuanjiang Wang, Chenyang Liu, Bei Peng, Jin Liang, Chao Li, Yaohua Zhao, Xian Lu, Cuicui Zhang, Shuang Liu, Yong-Chun |
| contents | Spontaneous symmetry breaking plays a pivotal role in physics ranging from the emergence of elementary particles to the phase transitions of matter. The spontaneous breaking of continuous time translation symmetry leads to a novel state of matter named continuous time crystal (CTC). It exhibits periodic oscillation without the need for periodic driving, and the relative phases for repetitively realized oscillations are random. However, the mechanism behind the spontaneous symmetry breaking in CTCs, particularly the random phases, remains elusive. Here we propose and experimentally realize two types of CTCs based on distinct mechanisms: manifold topology and near-chaotic motion. We observe both types of CTCs in thermal atomic ensembles by artificially synthesizing spin-spin nonlinear interactions through a measurement-feedback scheme. Our work provides general recipes for the realization of CTCs, and paves the way for exploring CTCs in various systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_07697 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Revealing spontaneous symmetry breaking in continuous time crystals Tang, Yuanjiang Wang, Chenyang Liu, Bei Peng, Jin Liang, Chao Li, Yaohua Zhao, Xian Lu, Cuicui Zhang, Shuang Liu, Yong-Chun Quantum Physics Spontaneous symmetry breaking plays a pivotal role in physics ranging from the emergence of elementary particles to the phase transitions of matter. The spontaneous breaking of continuous time translation symmetry leads to a novel state of matter named continuous time crystal (CTC). It exhibits periodic oscillation without the need for periodic driving, and the relative phases for repetitively realized oscillations are random. However, the mechanism behind the spontaneous symmetry breaking in CTCs, particularly the random phases, remains elusive. Here we propose and experimentally realize two types of CTCs based on distinct mechanisms: manifold topology and near-chaotic motion. We observe both types of CTCs in thermal atomic ensembles by artificially synthesizing spin-spin nonlinear interactions through a measurement-feedback scheme. Our work provides general recipes for the realization of CTCs, and paves the way for exploring CTCs in various systems. |
| title | Revealing spontaneous symmetry breaking in continuous time crystals |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2407.07697 |