2010 Fiscal Year Final Research Report
Nonequilibrium thermodynamics for fluctuations of biopolymers
| Project/Area Number |
19540392
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Mathematical physics/Fundamental condensed matter physics
|
|---|
| Research Institution | Ibaraki University |
|---|
Principal Investigator |
NAKAGAWA Naoko Ibaraki University, 理学部, 准教授 (60311586)
|
|---|
| Project Period (FY) |
2007 – 2010
|
| Keywords | 統計物理学 / 非平衡・非線形物理学 |
|---|
| Research Abstract |
Aiming at the construction of the formulation to describe the working mechanism of biopolymers, we study nonequilibrium steady states analytically. We obtain a concise expression for the probability distribution function correct up to the second order of the degree of nonequilibrium. From this expression, we arrive at a naturally extended Clausius relation to nonequilibrium. We next extend the relation to the second order of the degree of nonequilibrium and find that we should include a twist term, which especially appears in nonlinear nonequilibrium. From a different point of view to examine proteins' dynamics, we study slow fluctuations in a protein model and characterize them by a four-point correlation-functions.
|
