
Landaulike theory for universality of critical exponents in quasistationary states of isolated meanfield systemsLandaulike theory for universality of critical exponents in quasistationary states of isolated meanfield systemsAA11558033 
"/Ogawa, Shun/"Ogawa, Shun ,
"/Yamaguchi, Yoshiyuki Y./"Yamaguchi, Yoshiyuki Y.
91
(
6
)
20150608 , American Physical Society
ISSN:15393755
NCID:AA11558033
Description
An external force dynamically drives an isolated meanfield Hamiltonian system to a longlasting quasistationary state, whose lifetime increases with population of the system. For second order phase transitions in quasistationary states, two nonclassical critical exponents have been reported individually by using a linear and a nonlinear response theories in a toy model. We provide a simple way to compute the critical exponents all at once, which is an analog of the Landau theory. The present theory extends the universality class of the nonclassical exponents to spatially periodic onedimensional systems and shows that the exponents satisfy a classical scaling relation inevitably by using a key scaling of momentum.
FullText
http://repository.kulib.kyotou.ac.jp/dspace/bitstream/2433/199680/1/PhysRevE.91.062108.pdf