Infima statistics of entropy production in an underdamped Brownian motor
文献类型：期刊论文
| 作者 | Cheng, Ke; Dong, Jia-Qi; Han, Wen-Hui; Liu, Fei3; Huang, Liang1 |
| 刊名 | PHYSICAL REVIEW E
 |
| 出版日期 | 2020 |
| 卷号 | 102期号:6页码:62127 |
| 关键词 | FLUCTUATION THEOREM |
| ISSN号 | 2470-0045 |
| DOI | 10.1103/PhysRevE.102.062127 |
| 英文摘要 | The second law of thermodynamics states that the entropy never decreases for isolated macroscopical systems, which defines the arrow of time. For small systems, although the entropy increases on average, due to strong fluctuation, it may encounter a temporary decrease. The probability of negative entropy production follows the fluctuation theorem. Recently, it has been demonstrated theoretically the infima law that there exists a lower bound for the average values of the minima of the negative entropy production, which is -k(B). In this paper, we have constructed a horizontal Brownian motor immersed in a granular gas, whose dynamics is governed by the underdamped stochastic process. By recording the angular motion of the motor and measuring the key parameters of the system, we experimentally demonstrate that, despite the nonideal elements in the experiments and that the complex underlying dynamics, the average value of the minima of the negative entropy production is still bounded by -k(B), which may invoke further theoretical investigations of the applicability of the infima law in nonideal realistic small systems. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27365]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Gansu, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China 4.Beihang Univ, Sch Phys, Beijing 100191, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Ke,Dong, Jia-Qi,Han, Wen-Hui,et al. Infima statistics of entropy production in an underdamped Brownian motor[J]. PHYSICAL REVIEW E,2020,102(6):62127. |
| APA | Cheng, Ke,Dong, Jia-Qi,Han, Wen-Hui,Liu, Fei,&Huang, Liang.(2020).Infima statistics of entropy production in an underdamped Brownian motor.PHYSICAL REVIEW E,102(6),62127. |
| MLA | Cheng, Ke,et al."Infima statistics of entropy production in an underdamped Brownian motor".PHYSICAL REVIEW E 102.6(2020):62127. |
入库方式： OAI收割
来源：理论物理研究所
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