This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1103/PhysRevE.71.046122 in citations.
Please use the identifier: http://hdl.handle.net/2128/1502 in citations.
Absorbing phase transitions of unidirectionally coupled nonequilibrium systems
Absorbing phase transitions of unidirectionally coupled nonequilibrium systems
We investigate the change of critical behavior of two-level hierarchy systems in which the second level (B) is unidirectionally coupled to the first (A) by the coupling dynamics A -> A+nB with n=1 or 2. The first level belongs to the directed percolation or the parity-conserving (PC) universality...
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Personal Name(s): | Kwon, S. |
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Schütz, G. M. | |
Contributing Institute: |
Theorie II; IFF-TH-II |
Published in: | Physical Review E Physical review / E, 71 71 (2005 2005) 4 4, S. 046122 046122 |
Imprint: |
College Park, Md.
APS
2005
2005-04-18 2005-04-01 |
Physical Description: |
046122 |
DOI: |
10.1103/PhysRevE.71.046122 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Physical Review E
71 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/1502 in citations.
We investigate the change of critical behavior of two-level hierarchy systems in which the second level (B) is unidirectionally coupled to the first (A) by the coupling dynamics A -> A+nB with n=1 or 2. The first level belongs to the directed percolation or the parity-conserving (PC) universality class, the second to PC. If both levels are critical, the active region of the second level becomes heterogeneous. In the so-called coupled region the first level feeds particles to the second, while in the uncoupled region the second level evolves autonomously. Measuring dynamic critical exponents in both regions, we show to what extent the critical behavior of the second level depends on the universality class of the first. These results suggest a simple criterion for the emergence of unusual critical behavior of unidirectionally coupled nonequilibrium systems. |