Speaker
Sergey Godunov
(ITEP)
Description
Due to strong enhancement of loop effects in a superstrong magnetic field ($B\gg m^2/e^3$) the Coulomb potential becomes screened. This phenomenon dramatically changes the dependence of the electron energy levels on magnetic field. In particular, the freezing of energy levels occurs so the ground energy level of light ions can never reach the lower continuum (become critical), no matter how strong the field is.
Therefore, the magnetic field affects the critical nucleus charge $Z_{\rm cr}$ in two ways: i. it makes the electron movement essencially one-dimensional diminishing the value of $Z_{\rm cr}$; ii. it makes the potential weaker increasing the value of critical charge.
| Topic: | Memorial session for W. Greiner |
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Authors
Sergey Godunov
(ITEP)
Mikhail Vysotskiy
Dr
Bruno Machet
(UPMC Univ Paris 06, LPTHE)
