Tuning of barrier crossing time of a particle by time dependent magnetic field

Alendu Baura, Somrita Ray, Bidhan Chandra Bag*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We have studied the effect of time dependent magnetic field on the barrier crossing dynamics of a charged particle. An interplay of the magnetic field induced electric field and the applied field reveals several interesting features. For slowly oscillating field the barrier crossing rate increases remarkably particularly at large amplitude of the field. For appreciably large frequency a generically distinct phenomenon appears by virtue of parametric resonance manifested in multiple peaks appearing in the variation of the mean first passage time as a function of the amplitude. The parametric resonance is more robust against the variation of amplitude of the oscillating field compared to the case of variation of frequency. The barrier crossing time of a particle can be tuned para-metrically by appropriate choice of amplitude and frequency of the oscillating magnetic field.

Original languageEnglish
Article number244110
JournalJournal of Chemical Physics
Issue number24
StatePublished - 28 Jun 2013
Externally publishedYes


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