Transport of parallel momentum induced by current-symmetry breaking in toroidal plasmas
Camenen, Y., Peeters, A. G., Angioni, C., Casson, F. J. (Francis James), Hornsby, W. A., Snodin, A. P. and Strintzi, D.. (2009) Transport of parallel momentum induced by current-symmetry breaking in toroidal plasmas. Physical Review Letters, Vol.102 (No.12). Article no. 125001. ISSN 0031-9007Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.102.125001
The symmetry of a physical system strongly impacts on its properties. In toroidal plasmas, the symmetry along a magnetic field line usually constrains the radial flux of parallel momentum to zero in the absence of background flows. By breaking the up-down symmetry of the toroidal currents, this constraint can be relaxed. The parallel asymmetry in the magnetic configuration then leads to an incomplete cancellation of the turbulent momentum flux across a flux surface. The magnitude of the subsequent toroidal rotation increases with the up-down asymmetry and its sign depends on the direction of the toroidal magnetic field and plasma current. Such a mechanism offers new insights in the interpretation and control of the intrinsic toroidal rotation in present day experiments.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Divisions:||Faculty of Science > Physics|
|Journal or Publication Title:||Physical Review Letters|
|Publisher:||American Physical Society|
|Official Date:||27 March 2009|
|Number of Pages:||4|
|Page Range:||Article no. 125001|
|Access rights to Published version:||Restricted or Subscription Access|
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