Nonequilibrium charge dynamics of light-driven rings threaded by a magnetic flux
arXiv:cond-mat/0703502 · doi:10.1209/0295-5075/78/57001
Abstract
We study theoretically the charge polarization and the charge current dynamics of a mesoscopic ring driven by short asymmetric electromagnetic pulses and threaded by an external static magnetic flux. It is shown that the pulse-induced charge polarization and the associated light-emission is controllable by tuning the external magnetic flux. Applying two mutually perpendicular pulses triggers a charge current in the ring. The interplay between this nonequilibrium and the persistent currents is investigated and the conditions under which the pulses stop the persistent current are identified.
arXiv comment6 pages, 2 figures; submitted to EPL
References in corpus (7)
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Cited by in corpus (5)
- Magnetic Fields Effects on the Electronic Conduction Properties of Molecular Ring Structures
- Charge and spin dynamics driven by ultrashort extreme broadband pulses: a theory perspective
- Photo-induced, non-equilibrium spin and charge polarization in quantum rings
- Electromagnetic Pulse Driven Spin-dependent Currents in Semiconductor Quantum Rings
- Persistent Currents in Normal Metal Rings (Yale PhD thesis)