• Rapid Communication

Persistent global power fluctuations near a dynamic transition in electroconvection

Tibor Tóth-Katona, John R. Cressman, Walter I. Goldburg, and James T. Gleeson
Phys. Rev. E 68, 030101(R) – Published 10 September 2003
PDFExport Citation

Abstract

This is a study of the global fluctuations in power injection and light transmission through a liquid crystal just above the onset of electroconvection. The source of the fluctuations is identified as the creation and annihilation of defects. They are spatially uncorrelated and yet temporally correlated. The temporal correlation is seen to persist for extremely long times. There seems to be an especially close relation between defect creation or annihilation in electroconvection and thermal plumes in Rayleigh-Bénard convection.

  • Received 25 November 2002

DOI:https://doi.org/10.1103/PhysRevE.68.030101

©2003 American Physical Society

Authors & Affiliations

Tibor Tóth-Katona1,*, John R. Cressman2, Walter I. Goldburg2, and James T. Gleeson1

  • 1Department of Physics, Kent State University, P.O.B. 5190, Kent, Ohio 44242, USA
  • 2Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA

  • *On leave from Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O.B. 49, H-1525 Budapest, Hungary. Email address: katona@physics.kent.edu

References (Subscription Required)

Click to Expand
Issue

Vol. 68, Iss. 3 — September 2003

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review E

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×