Publications by authors named "Jordi Ventura Siches"
We consider overdamped Brownian particles with two degrees of freedom (DoF) that are confined in a time-varying quadratic potential and are in simultaneous contact with heat baths of different temperatures along the respective DoF. The anisotropy in thermal fluctuations can be used to extract work by suitably manipulating the confining potential. The question of what the maximal amount of work that can be extracted is has been raised in recent work, and has been computed under the simplifying assumption that the entropy of the distribution of particles (thermodynamic states) remains constant throughout a thermodynamic cycle.
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- A typical gyrating engine model features an inertial wheel that operates using torque generated by energy sources and examples include pendulums, Stirling engines, and Brownian gyrating engines.
- These engines average out variations in torque due to the system's inertia, leading to stable oscillations known as limit cycle oscillations.
- The study explores an inertia-less approach that relies on coupled torque-producing components to mitigate ambient variations and resist dissipative forces, with implications for both biomolecular processes and modern technological engines.