Brownian heat engine driven by correlated noise

John Andrew Albay^1*, Yonggun Jun¹

¹Department of Physics, National Central University, Zhongli, Taoyuan, Taiwan

* Presenter:John Andrew Albay, email:albayjohnandrew@gmail.com

The heat engine’s ability to extract work from a heat bath leads to many applications in different fields. With recent studies achieving higher efficiency of the engine in the bacterial bath, we demonstrate a Brownian heat engine driven by artificial correlated noise to figure out the origin of higher efficiency. Here, the engine is made of a Brownian particle in the time-varying harmonic potential. We use the exponentially correlated noise as an active temperature and observe that an active bath heat engine can surpass its counterpart in a passive bath by carefully choosing parameters. Our finding provides new insight into the Physics of the heat engine out of equilibrium and helps develop nano-machines.

Keywords: Heat engine, Brownian particle, Stochastic thermodynamics, correlated noise, active bath heat engine