Vibration-enhanced quantum transport
arXiv:0909.1846 · doi:10.1088/1367-2630/12/8/083033
Abstract
In this paper, we study the role of collective vibrational motion in the phenomenon of electronic energy transfer (EET) along a chain of coupled electronic dipoles with varying excitation frequencies. Previous experimental work on EET in conjugated polymer samples has suggested that the common structural framework of the macromolecule introduces correlations in the energy gap fluctuations which cause coherent EET. Inspired by these results, we present a simple model in which a driven nanomechanical resonator mode modulates the excitation energy of coupled quantum dots and find that this can indeed lead to an enhancement in the transport of excitations across the quantum network. Disorder of the on-site energies is a key requirement for this to occur. We also show that in this solid state system phase information is partially retained in the transfer process, as experimentally demonstrated in conjugated polymer samples. Consequently, this mechanism of vibration enhanced quantum transport might find applications in quantum information transfer of qubit states or entanglement.
7 pages, 6 figures, new material, included references, final published version
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Cited by in corpus (31)
- Vibrations, Quanta and Biology
- Enhancing quantum transport in a photonic network using controllable decoherence
- Quantum simulator of an open quantum system using superconducting qubits: exciton transport in photosynthetic complexes
- Identifying the quantum correlations in light-harvesting complexes
- Decoherence assisted transport in a dimer system
- Vibration-assisted resonance in photosynthetic excitation energy transfer
- Decoherence-assisted transport in quantum networks
- A quantum protective mechanism in photosynthesis
- Enhancing quantum transport efficiency by tuning non-Markovian dephasing
- Calculations of Nonlinear Wave-Packet Interferometry Signals in the Pump-Probe Limit as Tests for Vibrational Control over Electronic Excitation Transfer
- Collective Suppression of Linewidths in Circuit QED
- Analysis of the non-Markovianity for electron transfer reactions in an oligothiophene-fullerene heterojunction
- Vibrational exciton-mediated quantum state transfert: a simple model
- Phonon-induced dynamic resonance energy transfer
- Engineered Tunable Decay Rate and Controllable Dissipative Dynamics
- Quantum Model for a Periodically Driven Selectivity Filter in K Ion Channel
- Excitation Transport in Molecular Aggregates with thermal motion
- Quantum versus classical transport of energy in coupled two-level systems
- Decoherence-assisted transport and quantum criticalities
- Energy transport in the presence of entanglement
- Dephasing of electrons in the Aharonov-Bohm interferometer with a single-molecular vibrational junction
- Directed excitation transfer in vibrating chains by external fields
- Exciton transport enhancement across quantum Su-Schrieffer-Heeger lattices with quartic nonlinearity
- Short time behavior of continuous time quantum walks on graphs
- Effects of oscillatory deformations on the coherent and incoherent quantum transport
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- Properties and challenges of hot-phonon physics in metals: MgB and other compounds