Creating big time crystals with ultracold atoms
We investigate the size of discrete time crystals s (ratio of response period to driving period) that can be created for a Bose–Einstein condensate (BEC) bouncing resonantly on an oscillating mirror. We find that time crystals can be created with sizes in the range s ≈ 20–100 and that such big time...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2020-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/aba3e6 |
| _version_ | 1797750414734524416 |
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| author | Krzysztof Giergiel Tien Tran Ali Zaheer Arpana Singh Andrei Sidorov Krzysztof Sacha Peter Hannaford |
| author_facet | Krzysztof Giergiel Tien Tran Ali Zaheer Arpana Singh Andrei Sidorov Krzysztof Sacha Peter Hannaford |
| author_sort | Krzysztof Giergiel |
| collection | DOAJ |
| description | We investigate the size of discrete time crystals s (ratio of response period to driving period) that can be created for a Bose–Einstein condensate (BEC) bouncing resonantly on an oscillating mirror. We find that time crystals can be created with sizes in the range s ≈ 20–100 and that such big time crystals are easier to realize experimentally than a period-doubling (s=2) time crystal because they require either a larger drop height or a smaller number of bounces on the mirror. We also investigate the effects of having a realistic soft Gaussian potential mirror for the bouncing BEC, such as that produced by a repulsive light-sheet, which is found to make the experiment easier to implement than a hard-wall potential mirror. Finally, we discuss the choice of atomic system for creating time crystals based on a bouncing BEC and present an experimental protocol for realizing big time crystals. Such big time crystals provide a flexible platform for investigating a broad range of non-trivial condensed matter phenomena in the time domain. |
| first_indexed | 2024-03-12T16:32:23Z |
| format | Article |
| id | doaj.art-5df4f77bf21448179a5c37200bf326c4 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:32:23Z |
| publishDate | 2020-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-5df4f77bf21448179a5c37200bf326c42023-08-08T15:25:36ZengIOP PublishingNew Journal of Physics1367-26302020-01-0122808500410.1088/1367-2630/aba3e6Creating big time crystals with ultracold atomsKrzysztof Giergiel0Tien Tran1Ali Zaheer2Arpana Singh3Andrei Sidorov4Krzysztof Sacha5Peter Hannaford6Instytut Fizyki Teoretycznej, Universytet Jagiellonski , ulica Profesora Stanislawa Lojasiewicza 11, PL-30-348 Krakow, PolandOptical Sciences Centre, Swinburne University of Technology , Hawthorn, Victoria 3122, AustraliaOptical Sciences Centre, Swinburne University of Technology , Hawthorn, Victoria 3122, AustraliaOptical Sciences Centre, Swinburne University of Technology , Hawthorn, Victoria 3122, AustraliaOptical Sciences Centre, Swinburne University of Technology , Hawthorn, Victoria 3122, AustraliaInstytut Fizyki Teoretycznej, Universytet Jagiellonski , ulica Profesora Stanislawa Lojasiewicza 11, PL-30-348 Krakow, PolandOptical Sciences Centre, Swinburne University of Technology , Hawthorn, Victoria 3122, AustraliaWe investigate the size of discrete time crystals s (ratio of response period to driving period) that can be created for a Bose–Einstein condensate (BEC) bouncing resonantly on an oscillating mirror. We find that time crystals can be created with sizes in the range s ≈ 20–100 and that such big time crystals are easier to realize experimentally than a period-doubling (s=2) time crystal because they require either a larger drop height or a smaller number of bounces on the mirror. We also investigate the effects of having a realistic soft Gaussian potential mirror for the bouncing BEC, such as that produced by a repulsive light-sheet, which is found to make the experiment easier to implement than a hard-wall potential mirror. Finally, we discuss the choice of atomic system for creating time crystals based on a bouncing BEC and present an experimental protocol for realizing big time crystals. Such big time crystals provide a flexible platform for investigating a broad range of non-trivial condensed matter phenomena in the time domain.https://doi.org/10.1088/1367-2630/aba3e6time crystalsBose–Einstein condensateultracold atoms |
| spellingShingle | Krzysztof Giergiel Tien Tran Ali Zaheer Arpana Singh Andrei Sidorov Krzysztof Sacha Peter Hannaford Creating big time crystals with ultracold atoms New Journal of Physics time crystals Bose–Einstein condensate ultracold atoms |
| title | Creating big time crystals with ultracold atoms |
| title_full | Creating big time crystals with ultracold atoms |
| title_fullStr | Creating big time crystals with ultracold atoms |
| title_full_unstemmed | Creating big time crystals with ultracold atoms |
| title_short | Creating big time crystals with ultracold atoms |
| title_sort | creating big time crystals with ultracold atoms |
| topic | time crystals Bose–Einstein condensate ultracold atoms |
| url | https://doi.org/10.1088/1367-2630/aba3e6 |
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