Edge-state Blockade of Transport in Quantum Dot Arrays
arXiv:1511.01348 · doi:10.1103/PhysRevB.93.115432
Abstract
We propose a transport blockade mechanism in quantum dot arrays and conducting molecules based on an interplay of Coulomb repulsion and the formation of edge states. As a model we employ a dimer chain that exhibits a topological phase transition. The connection to a strongly biased electron source and drain enables transport. We show that the related emergence of edge states is manifest in the shot noise properties as it is accompanied by a crossover from bunched electron transport to a Poissonian process. For both regions we develop a scenario that can be captured by a rate equation. The resulting analytical expressions for the Fano factor agree well with the numerical solution of a full quantum master equation.
References in corpus (10)
- Franck-Condon blockade and giant Fano factors in transport through single molecules
- Franck-Condon blockade in suspended carbon nanotube quantum dots
- Counting Statistics of Non-Markovian Quantum Stochastic Processes
- Shot Noise of a Quantum Shuttle
- Noise enhancement due to quantum coherence in coupled quantum dots
- Long-range doublon transfer in a dimer chain induced by topology and ac fields
- Multiplexed Charge-locking Device for Large Arrays of Quantum Devices
- Electron Bunching in Stacks of Coupled Quantum Dots
- Coherent charge transport through molecular wires: influence of strong Coulomb repulsion
- Electron bunching in triple quantum dot interferometers
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- Transport, shot noise, and topology in AC-driven dimer arrays
- Transport signatures in topological systems coupled to AC fields
- Random-walk topological transition revealed via electron counting
- Exotic odd-even parity effects in transmission phase, (Andreev) conductance, and shot noise of a dimer atomic chain by topology
- Non-equilibrium boundary driven quantum systems: models, methods and properties
- Quantum dot coupled to topological insulators: The role of edge states