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Title: Photon assisted long-range tunneling

We analyze long-range transport through an ac driven triple quantum dot with a single electron. Resonant transitions between separated and detuned dots are mediated by the exchange of n photons with the time-dependent field. An effective model is proposed in terms of second order (cotunneling) processes which dominate the long-range transport between the edge quantum dots. The ac field renormalizes the inter dot hopping, modifying the level hybridization. It results in a non-trivial behavior of the current with the frequency and amplitude of the external ac field.
Authors:
; ;  [1]
  1. Instituto de Ciencia de Materiales, CSIC, Cantoblanco, 28049 Madrid (Spain)
Publication Date:
OSTI Identifier:
22399289
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ALTERNATING CURRENT; ELECTRONS; LONG-RANGE TRANSPORT; PHOTONS; QUANTUM DOTS; RENORMALIZATION; TIME DEPENDENCE; TUNNEL EFFECT