Information-to-work conversion in single-molecule experiments: From discrete to continuous feedback
Year: 2023
Type: article
Abstract: We theoretically investigate the extractable work in single molecule unfolding-folding experiments with applied feedback. Using a simple two-state model, we obtain a description of the full work distribution from discrete to continuous feedback. The effect of the feedback is captured by a detailed fluctuation theorem, accounting for the information aquired. We find analytical expressions for the average work extraction as well as an experimentally measurable bound thereof, which becomes tight in the continuous feedback limit. We further determine the parameters for maximal power or rate of work extraction. Although our two-state model only depends on a single effective transition rate, we find qualitative agreement with Monte Carlo simulations of DNA hairpin unfolding-folding dynamics.
Source: Physical review. E
Institutions: Lund University, NanoLund, Universitat de Barcelona
Language: English
Subfield: Statistical and Nonlinear Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: PROtein SEQuencing using Optical single molecule real-time detection, G2109279595, Information, Fluctuations, and Energy Control in Small Systems, G3207356259, G3796279057, G393177772, G434337789, G469999919, Harvesting Non-Classical Fluctuations with Thermal Machines, G5702163051, G63770550, G6436021060, Harvesting Non-Classical Fluctuations with Thermal Machines, Construction and control of biomolecular motors
OpenAlex ID: W3207763337