Dr. Khurom Kiyani
Position: Associate fellow (visiting researcher)
Current work
- Analysing turbulent fluctuations in the near earth ambient solar wind from Cluster II, WIND and ACE data.
- Investigating, quantifying and overcoming finite size effects in the scaling of non-Gaussian heavy-tailed stochastic processes.
Research interests:
- Statistical theory of turbulence
- Incompressible, homogeneous and isotropic fully developed turbulence. The most quintessential unadulterated form of turbulence (which is just hypothesisized to exist).
- Transition from kinetic to fluid (magnetohydrodynamic) descriptions of collisionless plasmas.
- Fractal and multifractal stochastic descriptions of intermittency.
- Statistical data analysis
- Scale-invariant stochastic processes.
- Stationarity testing and dealing with non-stationary signals.
- Wavelet methods; especially the Discrete Wavelet Transform and it's variants (Wavelet Packet and Undecimated/Stationary translation-invariant Wavelet Transforms).
- Non-equillibrium statistical physics
- Scaling & Renormalization Group (RG) methods.
- Cooperative & critical phenomena.
Recent results/publications
- K. H. Kiyani, S. C. Chapman, Yu. V. Khotyaintsev, M. W. Dunlop and F. Sahraoui, Global scale-invariant dissipation in collisionless plasma turbulence, Phys. Rev. Lett. 103, 075006 (2009) link, arXiv preprint
- K. H. Kiyani, S. C. Chapman and N. W. Watkins, Pseudononstationarity in the scaling exponents of finite-interval time series, Phys. Rev. E 79, 036109 (2009) link, arXiv preprint
Contact details
Address:
Communications and Signal Processing Group,
Department of Electrical and Electronic Engineering,
Imperial College London,
South Kensington,
London SW7 2AZ,
United Kingdom
