Chin. Phys. Lett.  2005, Vol. 22 Issue (11): 2772-2775    DOI:
Original Articles |
Current Inversion in a Temperature Ratchet with Asymmetric Unbiased External Forces
AI Bao-Quan1;XIE Hui-Zhang2;LIU Liang-Gang3
1School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510631 2Department of Physics, South China University of Technology, Guangzhou 510641 3Department of Physics, Zhongshan University, Guangzhou 510275
Cite this article:   
AI Bao-Quan, XIE Hui-Zhang, LIU Liang-Gang 2005 Chin. Phys. Lett. 22 2772-2775
Download: PDF(215KB)  
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks
Abstract Transport of a Brownian particle moving in a symmetric potential is investigated in the presence of an asymmetric unbiased external force. The viscous medium is alternately in contact with the two heat reservoirs. We present the analytical expression of the net current at the quasi-steady state limit. It is found that the competition of the temporal asymmetric parameter of the driving force with the temperature difference leads to current reversals. The competition between the two opposite driving factors is a necessary but not a sufficient condition for current reversals.
Keywords: 05.40.Ca      05.40.Jc      87.10.+c     
Published: 01 November 2005
PACS:  05.40.Ca (Noise)  
  05.40.Jc (Brownian motion)  
  87.10.+c  
TRENDMD:   
URL:  
https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2005/V22/I11/02772
Service
E-mail this article
E-mail Alert
RSS
Articles by authors
AI Bao-Quan
XIE Hui-Zhang
LIU Liang-Gang
Related articles from Frontiers Journals
[1] HE Gui-Tian, LUO Mao-Kang. Weak Signal Frequency Detection Based on a Fractional-Order Bistable System[J]. Chin. Phys. Lett., 2012, 29(6): 2772-2775
[2] LIU Jian, FAN Jian-Fen**. Relationship between the Permeation-Diffusion Parameters of a Single-File Channel[J]. Chin. Phys. Lett., 2012, 29(1): 2772-2775
[3] LU Hong**, BAO Jing-Dong . Time Evolution of a Harmonic Chain with Fixed Boundary Conditions[J]. Chin. Phys. Lett., 2011, 28(4): 2772-2775
[4] SONG Yan-Li . Frequency Effect of Harmonic Noise on the FitzHugh–Nagumo Neuron Model[J]. Chin. Phys. Lett., 2011, 28(12): 2772-2775
[5] LIU Xiong-Wei**, NA Xue-Sen, XU Ren-Xin, QIAO Guo-Jun . Particle Emission-Dependent Timing Noise of Pulsars[J]. Chin. Phys. Lett., 2011, 28(1): 2772-2775
[6] REN Yuan, MIAO Wei, YAO Qi-Jun, ZHANG Wen, SHI Sheng-Cai** . Terahertz Direct Detection Characteristics of a Superconducting NbN Bolometer[J]. Chin. Phys. Lett., 2011, 28(1): 2772-2775
[7] ZHAO Liang, LUO Xiao-Qin, WU Dan, ZHU Shi-Qun, GU Ji-Hua. Entropic Stochastic Resonance Driven by Colored Noise[J]. Chin. Phys. Lett., 2010, 27(4): 2772-2775
[8] TIAN Jing, CHEN Yong. Effect of Time Delay on Stochastic Tumor Growth[J]. Chin. Phys. Lett., 2010, 27(3): 2772-2775
[9] LI Jian-Long, ZENG Ling-Zao, ZHANG Hui-Quan. A Demonstration of Equivalence between Parameter-Induced and Noise-Induced Stochastic Resonances with Multiplicative and Additive Noises[J]. Chin. Phys. Lett., 2010, 27(10): 2772-2775
[10] NIE Lin-Ru, GONG Ai-Ling, MEI Dong-Cheng. Resonant-Like Activation in a Bistable System with Noise and Time Delay[J]. Chin. Phys. Lett., 2009, 26(6): 2772-2775
[11] SUN Yong-Zheng, RUAN Jiong. Leader--Follower Consensus Problems of Multi-agent Systems with Noise Perturbation and Time Delays[J]. Chin. Phys. Lett., 2008, 25(9): 2772-2775
[12] JIA Zheng-Lin. Numerical Investigation of Noise Enhanced Stability Phenomenon in a Time-Delayed Metastable System[J]. Chin. Phys. Lett., 2008, 25(4): 2772-2775
[13] BAI Zhan-Wu. Noise-Induced Phase Transition: Zero-Dimensional Brownian Particles Varying between Ergodicity and Nonergodicity[J]. Chin. Phys. Lett., 2008, 25(4): 2772-2775
[14] ZHAO Xiang-Hui, LONG Zhang-Cai, ZHANG Bing, YANG Nan. Suprathreshold Stochastic Resonance in Mechanoelectrical Transduction of Hair Cells[J]. Chin. Phys. Lett., 2008, 25(4): 2772-2775
[15] WANG Chun-Yang, BAO Jing-Dong. The Third Law of Quantum Thermodynamics in the Presence of Anomalous Couplings[J]. Chin. Phys. Lett., 2008, 25(2): 2772-2775
Viewed
Full text


Abstract