Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2302.13318 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917255485325312 |
|---|---|
| author | Sarkar, Arnab Anurag Mondal, Javed A. Singh, Rajan Makki, Aamir A. Rathi, Ateesh K. Nicholl, Ryan J. T. Chakraborty, Sagar Bolotin, Kirill I. Ghosh, Saikat |
| author_facet | Sarkar, Arnab Anurag Mondal, Javed A. Singh, Rajan Makki, Aamir A. Rathi, Ateesh K. Nicholl, Ryan J. T. Chakraborty, Sagar Bolotin, Kirill I. Ghosh, Saikat |
| contents | Discrete time crystals (DTCs) are emergent non-equilibrium phases of periodically driven many-body systems, with potential applications ranging from quantum computing to sensing and metrology. There has been significant recent interest in understanding mechanisms leading to DTC formation and a search for novel DTC phases beyond subharmonic entrainment. Here, we report observation of multiple DTC phases in a nanoelectromechanical system (NEMS) based on coupled graphene and silicon nitride membranes. We confirm the time-crystalline nature of these symmetry broken phases by establishing their many-body characters, long-range time and spatial order, and rigidity against parameter fluctuation or noise. Furthermore, we employ controlled mechanical strain to drive the transitions between phases with different symmetries, thereby mapping the emergent time-crystalline phase diagram. Overall, our work takes a step towards establishing time crystals as a system with complexity rivaling that of solid state crystals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2302_13318 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Observation of tunable discrete time crystalline phases Sarkar, Arnab Anurag Mondal, Javed A. Singh, Rajan Makki, Aamir A. Rathi, Ateesh K. Nicholl, Ryan J. T. Chakraborty, Sagar Bolotin, Kirill I. Ghosh, Saikat Mesoscale and Nanoscale Physics Discrete time crystals (DTCs) are emergent non-equilibrium phases of periodically driven many-body systems, with potential applications ranging from quantum computing to sensing and metrology. There has been significant recent interest in understanding mechanisms leading to DTC formation and a search for novel DTC phases beyond subharmonic entrainment. Here, we report observation of multiple DTC phases in a nanoelectromechanical system (NEMS) based on coupled graphene and silicon nitride membranes. We confirm the time-crystalline nature of these symmetry broken phases by establishing their many-body characters, long-range time and spatial order, and rigidity against parameter fluctuation or noise. Furthermore, we employ controlled mechanical strain to drive the transitions between phases with different symmetries, thereby mapping the emergent time-crystalline phase diagram. Overall, our work takes a step towards establishing time crystals as a system with complexity rivaling that of solid state crystals. |
| title | Observation of tunable discrete time crystalline phases |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2302.13318 |