Erratum: Chiral tunneling through a time-periodic potential in monolayer graphene [Phys. Rev. B78, 165420 (2008)]

Scattering of two-dimensional Dirac fermions on gate-defined oscillating quantum dots

“…We note that single or double quantum dots of such size and arbitrary shape may be achieved in experiments by applying nanoscale topgates on graphene nanoribbons or bilayer graphene [26][27][28] . To realize resonant scattering in small quantum dots with radii of, e.g., 100 nm, we need-operating the dot at E = 3 meV, V = 30 meV, andṼ ∼ 100 meV-a relatively high potential modulation frequency of about 50 THz (which is the same order of magnitude as for an oscillating rectangular barrier 21 ). Due to the chiral nature of the Dirac fermion Klein tunneling might be realized at normal and close to normal incidence, just as for the static dot.…”

“…For example, the relevance of photon-assisted transport 19 to the observability of Zitterbewegung has been shown 20 . Furthermore, in graphene systems with harmonically time-driven potentials energydependent transmission and, in particular, inelastic tunneling can appear where the electrons exchange energy quanta with the oscillating field 21 . Thereby ,the charge carrier is transferred to electronic side-bands, separated from the particle energy by multiples of the field modulation frequency, when passing through the field range.…”

Quantum noise in ac-driven resonant-tunneling double-barrier structures: Photon-assisted tunneling versus electron antibunching

“…the irradiation induced opening of a dynamical gap has been calculated 28 in a 2D electron gas when spin-orbit interaction is present. The current and noise through long, ac-driven molecular wires [29][30][31][32] , various aspects about ac-driven carbon based conductors [33][34][35][36][37] , photo-assisted noise in the fractional quantum Hall regime 38 , low-frequency current noise in diffusive conductors 39 , noise in adiabatic pumping [40][41][42] and the influence of electron-phonon interaction has been studied 43 . Even more works have investigated the influence of Coulomb repulsion on the transport through a quantum dot [44][45][46][47][48][49][50] .…”

Beating oscillation and Fano resonance in the laser assisted electron transmission through graphene δ-function magnetic barriers

“…On the other hand, the latter can be achieved by the use of a periodic time dependent potential or by an electromagnetic radiation (particularly the laser). Most of the earlier time dependent problems in graphene dealt either with the application of electromagnetic radiation on graphene [30][31][32][33][34][35][36][37] or with the application of a sinusoidal (AC) voltage on the bulk graphene 38 and graphene based quantum well/barrier structures [39][40][41][42][43] . It was pointed out by Trauzettel et.…”