Quantum to classical walk transitions tuned by spontaneous emissions
We have realized a quantum walk in momentum space with a rubidium spinor Bose-Einstein condensate by applying a periodic kicking potential as a walk operator and a resonant microwave pulse as a coin toss operator. The generated quantum walks appear to be stable for up to ten steps and then quickly t...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2021-10-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.3.043062 |
| _version_ | 1797210946766110720 |
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| author | J. H. Clark C. Groiseau Z. N. Shaw S. Dadras C. Binegar S. Wimberger G. S. Summy Y. Liu |
| author_facet | J. H. Clark C. Groiseau Z. N. Shaw S. Dadras C. Binegar S. Wimberger G. S. Summy Y. Liu |
| author_sort | J. H. Clark |
| collection | DOAJ |
| description | We have realized a quantum walk in momentum space with a rubidium spinor Bose-Einstein condensate by applying a periodic kicking potential as a walk operator and a resonant microwave pulse as a coin toss operator. The generated quantum walks appear to be stable for up to ten steps and then quickly transit to classical walks due to spontaneous emissions induced by laser beams of the walk operator. We investigate these quantum to classical walk transitions by introducing well-controlled spontaneous emissions with an external light source during quantum walks. Our findings demonstrate a scheme to control the robustness of the quantum walks and can also be applied to other cold atom experiments involving spontaneous emissions. |
| first_indexed | 2024-04-24T10:18:41Z |
| format | Article |
| id | doaj.art-a589de22bb834dc1b983d14365a5ef3a |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:18:41Z |
| publishDate | 2021-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-a589de22bb834dc1b983d14365a5ef3a2024-04-12T17:15:02ZengAmerican Physical SocietyPhysical Review Research2643-15642021-10-013404306210.1103/PhysRevResearch.3.043062Quantum to classical walk transitions tuned by spontaneous emissionsJ. H. ClarkC. GroiseauZ. N. ShawS. DadrasC. BinegarS. WimbergerG. S. SummyY. LiuWe have realized a quantum walk in momentum space with a rubidium spinor Bose-Einstein condensate by applying a periodic kicking potential as a walk operator and a resonant microwave pulse as a coin toss operator. The generated quantum walks appear to be stable for up to ten steps and then quickly transit to classical walks due to spontaneous emissions induced by laser beams of the walk operator. We investigate these quantum to classical walk transitions by introducing well-controlled spontaneous emissions with an external light source during quantum walks. Our findings demonstrate a scheme to control the robustness of the quantum walks and can also be applied to other cold atom experiments involving spontaneous emissions.http://doi.org/10.1103/PhysRevResearch.3.043062 |
| spellingShingle | J. H. Clark C. Groiseau Z. N. Shaw S. Dadras C. Binegar S. Wimberger G. S. Summy Y. Liu Quantum to classical walk transitions tuned by spontaneous emissions Physical Review Research |
| title | Quantum to classical walk transitions tuned by spontaneous emissions |
| title_full | Quantum to classical walk transitions tuned by spontaneous emissions |
| title_fullStr | Quantum to classical walk transitions tuned by spontaneous emissions |
| title_full_unstemmed | Quantum to classical walk transitions tuned by spontaneous emissions |
| title_short | Quantum to classical walk transitions tuned by spontaneous emissions |
| title_sort | quantum to classical walk transitions tuned by spontaneous emissions |
| url | http://doi.org/10.1103/PhysRevResearch.3.043062 |
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