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- W2058578082 abstract "We present a theory accounting for the origin of high-frequency current oscillations in a double barrier quantum-well system. The origin of such current oscillations is traced to the development of a dynamic emitter quantum-well and the concomitant coupling of the energy levels in the double barrier quantum-well system. The relationship between the oscillation frequency and the energy level structure of the system is expressed as ν=ΔE0/h: A self-consistent, time-dependent Wigner–Poisson numerical computer experiment is used to exhibit remarkable intrinsic, sustained current oscillations in the double-barrier quantum well at terahertz frequencies; and a procedure for calculating ΔE0, the energy difference at time t0 (defined such that the contribution to the energy difference from the potential oscillation is zero) is also presented. The simulated oscillation frequency determined using the Wigner–Poisson analysis is in very good agreement with that calculated using a Schrödinger equation with a self-consistent potential determined from the Poisson equation." @default.
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- W2058578082 date "2003-05-01" @default.
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- W2058578082 title "Origin of intrinsic oscillations in double-barrier quantum-well systems" @default.
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- W2058578082 doi "https://doi.org/10.1016/s0375-9601(03)00543-7" @default.
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