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Open Quantum Systems Decoherence
Quantum Chemistry
Robust ultrafast currents in molecular wires through Stark shifts
arXiv
Authors: Ignacio Franco, Moshe Shapiro, Paul Brumer
Year
2007
Paper ID
49519
Status
Preprint
Abstract Read
~2 min
Abstract Words
77
Citations
N/A
Abstract
A novel way to induce ultrafast currents in molecular wires using two incident laser frequencies, ω and 2ω, is demonstrated. The mechanism relies on Stark shifts, instead of photon absorption, to transfer population to the excited states and exploits the temporal profile of the field to generate phase controllable transport. Calculations in a trans-polyacetylene oligomer coupled to metallic leads indicate that the mechanism is highly efficient and robust to ultrafast electronic dephasing processes induced by vibronic couplings.
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- This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
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- A novel way to induce ultrafast currents in molecular wires using two incident laser frequencies, ω and 2ω, is demonstrated.
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