Open AccessThe cooperative effect of a colloidal particle driven by a periodic signal in a harmonic potential
Author(s) -
Qin Li,
JingDong Bao
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.1510
Subject(s) - work (physics) , signal (programming language) , harmonic potential , colloidal particle , harmonic , particle (ecology) , langevin equation , physics , colloid , dissipation , noise (video) , periodic potential , resonance (particle physics) , statistical physics , classical mechanics , condensed matter physics , thermodynamics , quantum mechanics , computer science , chemistry , oceanography , artificial intelligence , image (mathematics) , programming language , geology
For a colloidal particle in a harmonic potential driven by a periodic signalwe study its thermodynamic behavior and obtain the exact expressions of the effective temperature and dissipated work by solving the corresponding Langevin equation. The results show that due to the cooperative effect of the potentialthe signal and the noisethe energy of the environment can be transferred to the colloidal particle through the stirring action of the periodic driving forcewhich makes the effective temperature of the system increase greatly. Under the condition of dynamical resonancethe dissipated work also reaches its maximum.