Prof. Alexander Larmor

Prof. Dr. Prof. Prof.

The Finite Larmor Radius Approximation

The presence of a large external magnetic field in a plasma introduces an additional time-scale which is very constraining for the numerical simulation. Hence it is very useful to introduce averaged models which remove this time-scale. However, depending on other parameters of the plasma, different starting models for the asymptotic analysis may be considered. We introduce here a generic framew...

Finite Larmor Radius Effects and Quantum Chaos

Informed by insights from quantum chaos theory, three approaches for estimating finite-Larmor-radius (FLR) stabilization of ideal magnetohydrodynamic (MHD) instabilities are discussed: phase space criteria based on the Weyl formula, “pseudo-FLR” modifications of MHD to suppress large perpendicular wavenumbers, and inclusion of drift corrections to the dispersion relation. PACS numbers: 52.35.Bj...

A Hundred Years of Larmor Formula

Sir Joseph LARMOR showed in 1897 that an oscillating electric charge emits radiation energy proportional to (acceleration) 2. At first sight,the result appears to be valid for arbitrary accelerations. But, perpetual uniform acceleration has been a case of nagging doubts, as radiation reaction vanishes and the equivalence principle, as also conformal symmetry of Maxwell equations each require ni...

Dear Prof

distinct roles in heparan sulfate modifications and embryonic and larval development in Caenorhabditis elegans Katsufumi Dejima , Daisuke Murata, Souhei Mizuguchi, Kazuko H. Nomura, Tomomi Izumikawa, Hiroshi Kitagawa, Keiko Gengyo-Ando , Sawako Yoshina, Tomomi Ichimiya, Shoko Nishihara, Shohei Mitani and Kazuya Nomura* From the Department of Biology, Faculty of Sciences 33, Kyushu University, F...