Time crystals in primordial perturbations
Cosmological time crystal (TC) corresponds to a matter state where the periodic motion of field forms a limit cycle in its phase space. We explore what would happen if it existed in inflationary phase. It is found that the limit cycle responsible for TC will inevitably cause the periodic oscillation...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-02-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319308780 |
| id |
doaj-138dea1ad4fc4c13b8af19ccf9ec4567 |
|---|---|
| record_format |
Article |
| spelling |
doaj-138dea1ad4fc4c13b8af19ccf9ec45672020-11-25T01:20:12ZengElsevierPhysics Letters B0370-26932020-02-01801Time crystals in primordial perturbationsHao-Hao Li0Yun-Song Piao1School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding author.School of Physics, University of Chinese Academy of Sciences, Beijing 100049, China; Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190, ChinaCosmological time crystal (TC) corresponds to a matter state where the periodic motion of field forms a limit cycle in its phase space. We explore what would happen if it existed in inflationary phase. It is found that the limit cycle responsible for TC will inevitably cause the periodic oscillation of the primordial perturbation spectrum. The oscillatory patterns of the spectrum depend on the TC parameters, and so encode the crystalline patterns of TC.http://www.sciencedirect.com/science/article/pii/S0370269319308780 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Hao-Hao Li Yun-Song Piao |
| spellingShingle |
Hao-Hao Li Yun-Song Piao Time crystals in primordial perturbations Physics Letters B |
| author_facet |
Hao-Hao Li Yun-Song Piao |
| author_sort |
Hao-Hao Li |
| title |
Time crystals in primordial perturbations |
| title_short |
Time crystals in primordial perturbations |
| title_full |
Time crystals in primordial perturbations |
| title_fullStr |
Time crystals in primordial perturbations |
| title_full_unstemmed |
Time crystals in primordial perturbations |
| title_sort |
time crystals in primordial perturbations |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 |
| publishDate |
2020-02-01 |
| description |
Cosmological time crystal (TC) corresponds to a matter state where the periodic motion of field forms a limit cycle in its phase space. We explore what would happen if it existed in inflationary phase. It is found that the limit cycle responsible for TC will inevitably cause the periodic oscillation of the primordial perturbation spectrum. The oscillatory patterns of the spectrum depend on the TC parameters, and so encode the crystalline patterns of TC. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269319308780 |
| work_keys_str_mv |
AT haohaoli timecrystalsinprimordialperturbations AT yunsongpiao timecrystalsinprimordialperturbations |
| _version_ |
1725134867309527040 |