Energetics of a forced thermal ratchet

被引：79

作者：

Kamegawa, H ^{[1
]}

Hondou, T ^{[1
]}

Takagi, F ^{[1
]}

机构：

[1] Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.80.5251

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We formulate energetics of the forced thermal ratchet [M. O. Magnasco, Phys. Rev. Lett. 71, 1477 (1993)] and evaluate its efficiency of energy transformation. We show that the presence of thermal fluctuation cannot increase the efficiency of the energy transformation in the original system of Magnasco, which is contrary to his claim that "There is a region of the operating regime where the efficiency is optimized at finite temperatures." We also discuss the maximum efficiency of the forced thermal ratchet.

引用

页码：5251 / 5254

页数：4

共 13 条

[1]

AJDARI A, 1994, J PHYS I, V4, P1551, DOI 10.1051/jp1:1994206

[2] TRANSPORT AS A CONSEQUENCE OF STATE-DEPENDENT DIFFUSION [J].

BUTTIKER, M .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1987, 68 (2-3) :161-167

[3] NONEQUILIBRIUM FLUCTUATION-INDUCED TRANSPORT [J].

DOERING, CR ;

HORSTHEMKE, W ;

RIORDAN, J .

PHYSICAL REVIEW LETTERS, 1994, 72 (19) :2984-2987

[4]

FEYNMAN RP, 1966, FEYNMAN LECT PHYSICS

[5]

Gardiner C.W., 1990, HDB STOCHASTIC METHO

[6] DYNAMICAL BEHAVIOR OF A DISSIPATIVE PARTICLE IN A PERIODIC POTENTIAL SUBJECT TO CHAOTIC NOISE - RETRIEVAL OF CHAOTIC DETERMINISM WITH BROKEN PARITY [J].

HONDOU, T ;

SAWADA, Y .

PHYSICAL REVIEW LETTERS, 1995, 75 (18) :3269-3272

[7] Transformation of dynamical fluctuation into coherent energy [J].

Hondou, T .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (06) :1818-1821

[8] Modeling molecular motors [J].

Julicher, F ;

Ajdari, A ;

Prost, J .

REVIEWS OF MODERN PHYSICS, 1997, 69 (04) :1269-1281

[9] MOTION OUT OF NOISY STATES [J].

LANDAUER, R .

JOURNAL OF STATISTICAL PHYSICS, 1988, 53 (1-2) :233-248

[10] FORCED THERMAL RATCHETS [J].

MAGNASCO, MO .

PHYSICAL REVIEW LETTERS, 1993, 71 (10) :1477-1481

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