Self-organized criticality in 4He with a heat current
Abstract
In the presence of a small heat current and appropriate boundary conditions, 4He will reach the superfluid critical point without fine tuning the temperature. This provides a physical example of self-organized criticality via the mechanism of singular diffusion proposed by Carlson et al. [Phys. Rev. Lett. 65, 2547 (1990)].
- Publication:
-
Physical Review E
- Pub Date:
- June 1993
- DOI:
- 10.1103/PhysRevE.47.4581
- Bibcode:
- 1993PhRvE..47.4581M
- Keywords:
-
- 64.60.Ht;
- 67.40.-w;
- 05.60.+w;
- Dynamic critical phenomena;
- Boson degeneracy and superfluidity of <sup>4</sup>He