Many-body Szilárd engine with giant number fluctuations
Szilárd's information engine is a canonical example in the field of thermodynamics of information. We realize experimentally a macroscopic many-particle Szilárd engine that consists of active particles and use it to lift a mass against gravity. We show that the extractable work per cycle increa...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-12-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.043193 |
| _version_ | 1797210321848369152 |
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| author | Omer Chor Amir Sohachi Rémi Goerlich Eran Rosen Saar Rahav Yael Roichman |
| author_facet | Omer Chor Amir Sohachi Rémi Goerlich Eran Rosen Saar Rahav Yael Roichman |
| author_sort | Omer Chor |
| collection | DOAJ |
| description | Szilárd's information engine is a canonical example in the field of thermodynamics of information. We realize experimentally a macroscopic many-particle Szilárd engine that consists of active particles and use it to lift a mass against gravity. We show that the extractable work per cycle increases when the raised weight is changed more gradually during the process. Interestingly, we find that the ideal extractable work grows with the number of particles due to giant number fluctuations. This is in contrast to the calculated behavior of a similar engine operating on thermal particles. |
| first_indexed | 2024-04-24T10:08:45Z |
| format | Article |
| id | doaj.art-922647419a65463e85fac438fbd3f3d4 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:08:45Z |
| publishDate | 2023-12-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-922647419a65463e85fac438fbd3f3d42024-04-12T17:36:30ZengAmerican Physical SocietyPhysical Review Research2643-15642023-12-015404319310.1103/PhysRevResearch.5.043193Many-body Szilárd engine with giant number fluctuationsOmer ChorAmir SohachiRémi GoerlichEran RosenSaar RahavYael RoichmanSzilárd's information engine is a canonical example in the field of thermodynamics of information. We realize experimentally a macroscopic many-particle Szilárd engine that consists of active particles and use it to lift a mass against gravity. We show that the extractable work per cycle increases when the raised weight is changed more gradually during the process. Interestingly, we find that the ideal extractable work grows with the number of particles due to giant number fluctuations. This is in contrast to the calculated behavior of a similar engine operating on thermal particles.http://doi.org/10.1103/PhysRevResearch.5.043193 |
| spellingShingle | Omer Chor Amir Sohachi Rémi Goerlich Eran Rosen Saar Rahav Yael Roichman Many-body Szilárd engine with giant number fluctuations Physical Review Research |
| title | Many-body Szilárd engine with giant number fluctuations |
| title_full | Many-body Szilárd engine with giant number fluctuations |
| title_fullStr | Many-body Szilárd engine with giant number fluctuations |
| title_full_unstemmed | Many-body Szilárd engine with giant number fluctuations |
| title_short | Many-body Szilárd engine with giant number fluctuations |
| title_sort | many body szilard engine with giant number fluctuations |
| url | http://doi.org/10.1103/PhysRevResearch.5.043193 |
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