Phys. Rev. A 45, 7288–7291 (1992)Dynamics of directed polymers with cutting interactionsReceived 5 December 1991; published in the issue dated May 1992 An equation for the time evolution of the density of directed polymers is derived in the limit of a high rate of cutting. The equilibrium solution is found to be equivalent to that obtained from the transfer-matrix approach for a single directed polymer. For potentials that depend only on the transverse coordinates, the logarithm of the mobility is found to behave as ∼(-U1/2), or barrier height U. Application to the motion of flux lines in superconductors is briefly discussed. © 1992 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.45.7288
DOI:
10.1103/PhysRevA.45.7288
PACS:
36.20.Ey, 05.60.+w, 74.60.Ge
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.