Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator
The continuous spontaneous localization (CSL) model predicts a tiny break of energy conservation via a weak stochastic force acting on physical systems, which triggers the collapse of the wave function. Mechanical oscillators are a natural way to test such a force; in particular, a levitated microme...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2020-01-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.013057 |
| _version_ | 1797211593649422336 |
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| author | Di Zheng Yingchun Leng Xi Kong Rui Li Zizhe Wang Xiaohui Luo Jie Zhao Chang-Kui Duan Pu Huang Jiangfeng Du Matteo Carlesso Angelo Bassi |
| author_facet | Di Zheng Yingchun Leng Xi Kong Rui Li Zizhe Wang Xiaohui Luo Jie Zhao Chang-Kui Duan Pu Huang Jiangfeng Du Matteo Carlesso Angelo Bassi |
| author_sort | Di Zheng |
| collection | DOAJ |
| description | The continuous spontaneous localization (CSL) model predicts a tiny break of energy conservation via a weak stochastic force acting on physical systems, which triggers the collapse of the wave function. Mechanical oscillators are a natural way to test such a force; in particular, a levitated micromechanical oscillator has been recently proposed to be an ideal system. We report a proof-of-principle experiment with a micro-oscillator generated by a microsphere diamagnetically levitated in a magnetogravitational trap under high vacuum. Due to the ultralow mechanical dissipation, the oscillator provides a new upper bound on the CSL collapse rate, which gives an improvement of two orders of magnitude over the previous bounds in the same frequency range, and partially reaches the enhanced collapse rate suggested by Adler. Although being performed at room temperature, our experiment has already exhibited advantages over those operating at low temperatures. Our results experimentally show the potential for a magnetogravitational levitated mechanical oscillator as a promising method for testing the collapse model. Further improvements in cryogenic experiments are discussed. |
| first_indexed | 2024-04-24T10:28:57Z |
| format | Article |
| id | doaj.art-382ea4f6254b46e9b73f2b718ee2959b |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:28:57Z |
| publishDate | 2020-01-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-382ea4f6254b46e9b73f2b718ee2959b2024-04-12T16:48:51ZengAmerican Physical SocietyPhysical Review Research2643-15642020-01-012101305710.1103/PhysRevResearch.2.013057Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillatorDi ZhengYingchun LengXi KongRui LiZizhe WangXiaohui LuoJie ZhaoChang-Kui DuanPu HuangJiangfeng DuMatteo CarlessoAngelo BassiThe continuous spontaneous localization (CSL) model predicts a tiny break of energy conservation via a weak stochastic force acting on physical systems, which triggers the collapse of the wave function. Mechanical oscillators are a natural way to test such a force; in particular, a levitated micromechanical oscillator has been recently proposed to be an ideal system. We report a proof-of-principle experiment with a micro-oscillator generated by a microsphere diamagnetically levitated in a magnetogravitational trap under high vacuum. Due to the ultralow mechanical dissipation, the oscillator provides a new upper bound on the CSL collapse rate, which gives an improvement of two orders of magnitude over the previous bounds in the same frequency range, and partially reaches the enhanced collapse rate suggested by Adler. Although being performed at room temperature, our experiment has already exhibited advantages over those operating at low temperatures. Our results experimentally show the potential for a magnetogravitational levitated mechanical oscillator as a promising method for testing the collapse model. Further improvements in cryogenic experiments are discussed.http://doi.org/10.1103/PhysRevResearch.2.013057 |
| spellingShingle | Di Zheng Yingchun Leng Xi Kong Rui Li Zizhe Wang Xiaohui Luo Jie Zhao Chang-Kui Duan Pu Huang Jiangfeng Du Matteo Carlesso Angelo Bassi Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator Physical Review Research |
| title | Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator |
| title_full | Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator |
| title_fullStr | Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator |
| title_full_unstemmed | Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator |
| title_short | Room temperature test of the continuous spontaneous localization model using a levitated micro-oscillator |
| title_sort | room temperature test of the continuous spontaneous localization model using a levitated micro oscillator |
| url | http://doi.org/10.1103/PhysRevResearch.2.013057 |
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