Vibrational effects in laser driven molecular wires

Abstract

The influence of an electron-vibrational coupling on the laser control of electron transport through a molecular wire that is attached to several electronic leads is investigated. These molecular vibrational modes induce an effective electron-electron interaction. In the regime where the wire electrons couple weakly to both the external leads and the vibrational modes, we derive within a Hartree-Fock approximation a nonlinear set of quantum kinetic equations. The quantum kinetic theory is then used to evaluate the laser driven, time-averaged electron current through the wire-leads contacts. This novel formalism is applied to two archetypical situations in the presence of electron-vibrational effects, namely, (i) the generation of a ratchet or pump current in a symmetrical molecule by a harmonic mixing field and (ii) the laser switching of the current through the molecule.

12 pages, 7 figures, RevTeX4 required

References in corpus (22)

• Brownian motors: noisy transport far from equilibrium
• First-Principles Based Matrix-Green's Function Approach to Molecular Electronic Devices: General Formalism
• An Adiabatic Quantum Electron Pump
• Electrical transport through single-molecule junctions: from molecular orbitals to conduction channels
• First-Principles Analysis of Molecular Conduction Using Quantum Chemistry Software
• Floquet-Markov description of the parametrically driven, dissipative harmonic quantum oscillator
• Influence of nano-mechanical properties on single electron tunneling: A vibrating Single-Electron Transistor
• The effect of inelastic processes on tunneling
• Molecular Wires Acting as Coherent Quantum Ratchets
• Quantum inelastic conductance through molecular wires
• Landauer Theory, Inelastic Scattering and Electron Transport in Molecular Wires
• Coherent electron-phonon coupling and polaron-like transport in molecular wires
• Current Noise in ac-Driven Nanoscale Conductors
• Laser controlled molecular switches and transistors
• Rectification of laser-induced electronic transport through molecules
• Conduction in molecular junctions: Inelastic effects
• Coherent and incoherent chaotic tunneling near singlet-doublet crossings
• Steady state quantum mechanics of thermally relaxing systems
• Strong coupling theory for driven tunneling and vibrational relaxation
• On apparent breaking the second law of thermodynamics in quantum transport studies
• Strong coupling theory for tunneling and vibrational relaxation in driven bistable systems
• Coherence control for qubits

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• Quantum Interference and Decoherence in Single-Molecule Junctions: How Vibrations Induce Electrical Current
• Numerically exact, time-dependent treatment of vibrationally coupled electron transport in single-molecule junctions
• Vibrational nonequilibrium effects in the conductance of single-molecules with multiple electronic states
• Multimode vibrational effects in single molecule conductance: A nonequilibrium Green's function approach
• Vibrational Instabilities in Resonant Electron Transport through Single-Molecule Junctions
• Ratchet transport and periodic structures in parameter space
• Numerically exact, time-dependent study of correlated electron transport in model molecular junctions
• Hierarchical quantum master equation approach to electronic-vibrational coupling in nonequilibrium transport through nanosystems: Reservoir formulation and application to vibrational instabilities
• Bias-Controlled Selective Excitation of Vibrational Modes in Molecular Junctions: A Route Towards Mode-Selective Chemistry
• The formation of nonequilibrium steady states in interacting double quantum dots: When coherences dominate the charge distribution
• Extending the hierarchical quantum master equation approach to low temperatures and realistic band structures
• Current Noise in Single-Molecule Junctions Induced by Electronic-Vibrational Coupling
• Vibrationally Induced Decoherence in Single-Molecule Junctions
• Laser-induced currents along molecular wire junctions
• Vibronic effects on resonant electron conduction through single molecule junctions
• Minimum requirements for laser-induced symmetry breaking in quantum and classical mechanics
• Cooling by heating in nonequilibrium nanosystems
• Molecular wires acting as quantum heat ratchets
• Boosting thermoelectric efficiency using time-dependent control
• Noise Spectra of ac-driven quantum dots
• Partition-free theory of time-dependent current correlations in nanojunctions in response to an arbitrary time-dependent bias
• Sharp peaks in the conductance of double quantum dot and quantum dot spin-valve systems at high temperatures: A hierarchical quantum master equation approach
• Transient Dynamics in Molecular Junctions: Coherent Bichromophoric Molecular Electron Pumps
• Femtosecond dynamics and laser control of charge transport in trans-polyacetylene
• Charge transport through a flexible molecular junction
• A multilayer multiconfiguration time-dependent Hartree study of the nonequilibrium Anderson impurity model at zero temperature
• Effect of broadening in the weak coupling limit of vibrationally coupled electron transport through molecular junctions and the analogy to quantum dot circuit QED systems
• Motor effect in electron transport through a molecular junction with torsional vibrations
• Shot noise in non-adiabatically driven nanoscale conductors
• Coulomb blockade effects in driven electron transport
• A Quasi-Classical Mapping Approach to Vibrationally Coupled Electron Transport in Molecular Junctions
• Transient currents in a molecular photo-diode
• Vibrationally dependent electron-electron interactions in resonant electron transport through single-molecule junctions
• A Cartesian Quasi-classical Model to Nonequilibrium Quantum Transport: The Anderson Impurity Model
• On the Accuracy of the Noninteracting Electron Approximation for Vibrationally Coupled Electron Transport
• Optimizing thermally affected ratchet currents using periodic perturbations
• Molecular electronics in junctions with energy disorder
• Current without bias and diode effect in shuttling transport of nanoshafts
• Fano Resonances in Quantum Transport with Vibrations