Dissipation rates from experimental uncertainty
Active matter and driven systems exhibit statistical fluctuations in density and particle positions that are an indirect indicator of dissipation across length and time scales. Here, we quantitatively relate these fluctuations to a thermodynamic speed limit that constrains the rates of heat and entr...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2025-03-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.L012078 |
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| _version_ | 1849391931264598016 |
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| author | Aishani Ghosal Jason R. Green |
| author_facet | Aishani Ghosal Jason R. Green |
| author_sort | Aishani Ghosal |
| collection | DOAJ |
| description | Active matter and driven systems exhibit statistical fluctuations in density and particle positions that are an indirect indicator of dissipation across length and time scales. Here, we quantitatively relate these fluctuations to a thermodynamic speed limit that constrains the rates of heat and entropy production in nonequilibrium processes. By reparametrizing the speed limit set by the Fisher information, we show how to infer these dissipation rates from directly observable or controllable quantities. This approach can use available experimental data as input and avoid the need for analytically solvable microscopic models or full time-dependent probability distributions. The heat rate we predict agrees with experimental measurements for a pulled Brownian particle and a microtubule active gel, which validates the approach and suggests potential for the design of experiments. |
| format | Article |
| id | doaj-art-4a8807fb858f410ea37200c9eb8a0f4e |
| institution | Kabale University |
| issn | 2643-1564 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj-art-4a8807fb858f410ea37200c9eb8a0f4e2025-08-20T03:40:53ZengAmerican Physical SocietyPhysical Review Research2643-15642025-03-0171L01207810.1103/PhysRevResearch.7.L012078Dissipation rates from experimental uncertaintyAishani GhosalJason R. GreenActive matter and driven systems exhibit statistical fluctuations in density and particle positions that are an indirect indicator of dissipation across length and time scales. Here, we quantitatively relate these fluctuations to a thermodynamic speed limit that constrains the rates of heat and entropy production in nonequilibrium processes. By reparametrizing the speed limit set by the Fisher information, we show how to infer these dissipation rates from directly observable or controllable quantities. This approach can use available experimental data as input and avoid the need for analytically solvable microscopic models or full time-dependent probability distributions. The heat rate we predict agrees with experimental measurements for a pulled Brownian particle and a microtubule active gel, which validates the approach and suggests potential for the design of experiments.http://doi.org/10.1103/PhysRevResearch.7.L012078 |
| spellingShingle | Aishani Ghosal Jason R. Green Dissipation rates from experimental uncertainty Physical Review Research |
| title | Dissipation rates from experimental uncertainty |
| title_full | Dissipation rates from experimental uncertainty |
| title_fullStr | Dissipation rates from experimental uncertainty |
| title_full_unstemmed | Dissipation rates from experimental uncertainty |
| title_short | Dissipation rates from experimental uncertainty |
| title_sort | dissipation rates from experimental uncertainty |
| url | http://doi.org/10.1103/PhysRevResearch.7.L012078 |
| work_keys_str_mv | AT aishanighosal dissipationratesfromexperimentaluncertainty AT jasonrgreen dissipationratesfromexperimentaluncertainty |