Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Yonggun Jun"'
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043085 (2023)
When Carnot and Stirling initially conceptualized heat engines, temperature unambiguously represented our everyday perception of cold and hot. However, as this energy scale is expanded to measure the strength of noise in general nonequilibrium heat b
Externí odkaz:
https://doaj.org/article/1786381f4139447391eee97c57e40b1e
Autor:
John A. C. Albay, Zhi-Yi Zhou, Chia-Hao Chang, Hsuan-Yi Chen, Jae Sung Lee, Cheng-Hung Chang, Yonggun Jun
Publikováno v:
Physical Review Research, Vol 5, Iss 3, p 033208 (2023)
A recent experiment demonstrated that a colloidal heat engine immersed in an active bath can outperform those subject to equilibrium or passive baths. Although it has motivated several theoretical studies to clarify the possible origins of such high
Externí odkaz:
https://doaj.org/article/47f41b8c4c8a4fa0960910a172577985
Publikováno v:
Physical Review Research, Vol 5, Iss 2, p 023115 (2023)
The ability of a gambling demon to extract work with a prescribed stopping threshold of cumulative work is analyzed theoretically and realized experimentally in the paradigm system of a Brownian particle in a time-dependent squeezing potential. The m
Externí odkaz:
https://doaj.org/article/0d791bd3323f446592185c0029fb5ef7
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-10 (2021)
Abstract Although the equivalence of heat and work has been unveiled since Joule’s ingenious experiment in 1845, they rarely originate from the same source in experiments. In this study, we theoretically and experimentally demonstrated how to use a
Externí odkaz:
https://doaj.org/article/1a258fa926b3473e95c6ca98ae643da9
Autor:
Yonggun Jun (전용근), Pik-Yin Lai (黎璧賢)
Publikováno v:
Physical Review Research, Vol 4, Iss 2, p 023157 (2022)
We consider the instantaneous equilibrium (ieq) transition of an underdamped Brownian particle under arbitrary time-dependent temperature and potential variations and derive analytic results for the temperature and potential protocols for minimal dis
Externí odkaz:
https://doaj.org/article/15fb0c436072498ba75c9c0e49ead807
Autor:
Yonggun Jun (전용근), Pik-Yin Lai (黎璧賢)
Publikováno v:
Physical Review Research, Vol 3, Iss 3, p 033130 (2021)
The theory of constructing instantaneous equilibrium (ieq) transition under arbitrary time-dependent temperature and potential variation for a Brownian particle is developed. It is shown that it is essential to consider the underdamped dynamics for t
Externí odkaz:
https://doaj.org/article/139dca934f8242e0a79f329e0ff49825
Publikováno v:
New Journal of Physics, Vol 22, Iss 12, p 123049 (2020)
Realizing quasistatic processes in finite times requires additional control parameters to keep the system in instantaneous equilibrium (ieq). However, the finite-rate ieq transition of the reverse process is not just the time-reversal of the ieq forw
Externí odkaz:
https://doaj.org/article/c0009533676c4787b4a28267bdad8941
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033122 (2019)
We study the thermodynamic energy cost required for the shortcuts-to-isothermal (ScI) process that can accelerate the isothermal process at a finite time. Our experiment uses a Brownian particle dragged by the harmonic potential between two equilibri
Externí odkaz:
https://doaj.org/article/c3e23b85a17043598c240249c748845a
Publikováno v:
Physical review. E. 106(2)
We experimentally demonstrate that a Brownian gyrator of a colloidal particle confined in a two-dimensional harmonic potential with different effective temperatures on orthogonal axes can work as an autonomous heat engine capable of extracting work f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ba1de3c48282b2b7c4b35fdaab34a1f
https://pubmed.ncbi.nlm.nih.gov/36109984
https://pubmed.ncbi.nlm.nih.gov/36109984
Autor:
Pik-Yin Lai, Yonggun Jun
Publikováno v:
Physical Review Research. 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bed38d6271a2de684322ae9d8cbd6c3
https://doi.org/10.1103/physrevresearch.4.023157
https://doi.org/10.1103/physrevresearch.4.023157