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19922026
most citedModeling the Time Variability of SDSS Stripe 82 Quasars as a Damped Random Walk

705 citations

Showing cond-mat.mes-hallShow all

27 papers · 1 filter

cond-mat.mes-hall2023★ 9 cited

A physically realizable molecular motor driven by the Landauer blowtorch effect

Riley J. Preston, Daniel S. Kosov

We propose a model for a molecular motor in a molecular electronic junction driven by a natural manifestation of Landauer's blowtorch effect. The effect emerges via the interplay o…

cond-mat.mes-hall2022★ 10 cited

Quantum transport in driven systems with vibrations: Floquet nonequilibrium Green's functions and the GD approximation

Thomas D. Honeychurch, Daniel S. Kosov

We investigate the effects of alternating voltage on nonequilibrium quantum systems with localised phonon modes. Nonequilibrium Green's functions are utilised, with electron-phonon…

cond-mat.mes-hall2022★ 10 cited

Emergence of negative viscosities and colored noise under current-driven Ehrenfest molecular dynamics

Riley J. Preston, Thomas D. Honeychurch, Daniel S. Kosov

Molecules in molecular junctions are subject to current-induced forces that can break chemical bonds, induce reactions, destabilize molecular geometry, and halt the operation of th…

cond-mat.mes-hall2021★ 14 cited

Electronic statistics-on-demand: bunching, anti-bunching, positive and negative correlations in a molecular spin-valve

Nicholas S. Davis, Samuel L. Rudge, Daniel S. Kosov

One of the long-standing goals of quantum transport is to use the noise, rather than the average current, for information processing. However, achieving this requires on-demand con…

cond-mat.mes-hall2021★ 17 cited

First-passage time theory of activated rate chemical processes in electronic molecular junctions

Riley J. Preston, Maxim F. Gelin, Daniel S. Kosov

Confined nanoscale spaces, electric fields and tunneling currents make the molecular electronic junction an experimental device for the discovery of new, out-of-equilibrium chemica…

cond-mat.mes-hall2021★ 4 cited

A model for dynamical solvent control of molecular junction electronic properties

Maxim F. Gelin, Daniel S. Kosov

Experimental measurements of electron transport properties of molecular junctions are often performed in solvents. Solvent-molecule coupling and physical properties of the solvent…

cond-mat.mes-hall2020★ 17 cited

Full counting statistics for electron transport in periodically driven quantum dots

Thomas D. Honeychurch, Daniel S. Kosov

Time-dependent driving influences the quantum and thermodynamic fluctuations of a system, changing the familiar physical picture of electronic noise which is an important source of…

cond-mat.mes-hall2020★ 16 cited

Non-Adiabatic Effects of Nuclear Motion in Quantum Transport of Electrons: A Self-Consistent Keldysh-Langevin Study

Vincent F. Kershaw, Daniel S. Kosov

The molecular junction geometry is modelled in terms of nuclear degrees of freedom that are embedded in a stochastic quantum environment of non-equilibrium electrons. Time-evolutio…

cond-mat.mes-hall2020★ 14 cited

Cooling molecular electronic junctions by AC current

Riley J. Preston, Thomas D. Honeychurch, Daniel S. Kosov

Electronic current flowing in a molecular electronic junction dissipates significant amounts of energy to vibrational degrees of freedom, straining and rupturing chemical bonds and…

cond-mat.mes-hall2020★ 29 cited

Current-induced atomic motion, structural instabilities, and negative temperatures on molecule-electrode interfaces in electronic junctions

Riley J. Preston, Vincent F. Kershaw, Daniel S. Kosov

Molecule-electrode interfaces in molecular electronic junctions are prone to chemical reactions, structural changes, and localized heating effects caused by electric current. These…

cond-mat.mes-hall2019★ 17 cited

Timescale separation solution of Kadanoff-Baym equations for quantum transport in time-dependent fields

Thomas D. Honeychurch, Daniel S. Kosov

The interaction with time-dependent external fields, especially the interplay between time-dependent driving and quantum correlations, changes the familiar picture of electron tran…

cond-mat.mes-hall2019★ 11 cited

Fluctuating-time and full counting statistics for quantum transport in a system with internal telegraphic noise

Samuel L. Rudge, Daniel S. Kosov

Many molecular junctions display stochastic telegraphic switching between two distinct current values, which is therefore an important source of fluctuations in nanoscale quantum t…

cond-mat.mes-hall2019★ 27 cited

Counting quantum jumps: a summary and comparison of fixed-time and fluctuating-time statistics in electron transport

Samuel L. Rudge, Daniel S. Kosov

In quantum transport through nanoscale devices, fluctuations arise from various sources: the discreteness of charge carriers, the statistical non-equilibrium that is required for d…

cond-mat.mes-hall2019★ 20 cited

Non-renewal statistics in quantum transport through the eyes of first-passage and waiting time distributions

Samuel L. Rudge, Daniel S. Kosov

The waiting time distribution has, in recent years, proven to be a useful statistical tool for characterising transport in nanoscale quantum transport. In particular, as opposed to…

cond-mat.mes-hall2018

Coupled elastic membranes model for quantum heat transport in semiconductor nanowires

Julian A Lawn, Daniel S Kosov

Presented here is a nanowire model, consisting of coupled elastic membranes with the purpose of investigating thermal transport in quasi-one-dimensional quantum systems. The vibrat…

cond-mat.mes-hall2018★ 14 cited

Non-equilibrium Green's function theory for non-adiabatic effects in quantum transport: inclusion of electron-electron interactions

Vincent F. Kershaw, Daniel S. Kosov

Non-equilibrium Green's function theory for non-adiabatic effects in quantum transport [Kershaw and Kosov, J.Chem. Phys. 2017, 147, 224109 and J. Chem. Phys. 2018, 149, 044121] is…

cond-mat.mes-hall2018★ 12 cited

Waiting time between charging and discharging processes in molecular junctions

Daniel S. Kosov

When electric current flows through a molecular junction, the molecule constantly charges and discharges by tunnelling electrons. These charging and discharging events occur at spe…

cond-mat.mes-hall2018★ 21 cited

Distribution of waiting times between electron cotunnelings

Samuel L. Rudge, Daniel S. Kosov

In the resonant tunneling regime sequential processes dominate single electron transport through quantum dots or molecules that are weakly coupled to macroscopic electrodes. In the…

cond-mat.mes-hall2018★ 14 cited

Telegraph noise in Markovian master equation for electron transport through molecular junctions

Daniel S. Kosov

We present a theoretical approach to solve Markovian master equation for quantum transport with stochastic telegraph noise. Considering probabilities as functionals of a random tel…

cond-mat.mes-hall2018★ 12 cited

Nonadiabatic corrections to electric current in molecular junction due to nuclear motion at the molecule-electrode interfaces

Vincent F. Kershaw, Daniel S. Kosov

We present quantum electron transport theory that incorporates dynamical effects of motion of atoms on electrode-molecule interfaces in the calculations of the electric current. Th…

cond-mat.mes-hall2017★ 16 cited

Nonequilibrium Green's function theory for nonadiabatic effects in quantum electron transport

Vincent F. Kershaw, Daniel S. Kosov

We develop nonequilibribrium Green's function based transport theory, which includes effects of nonadiabatic nuclear motion in the calculation of the electric current in molecular…

cond-mat.mes-hall2017★ 23 cited

Non-renewal statistics for electron transport in a molecular junction with electron-vibration interaction

Daniel S. Kosov

Quantum transport of electrons through a molecule is a series of individual electron tunnelling events separated by stochastic waiting time intervals. We study the emergence of tem…

cond-mat.mes-hall2016★ 33 cited

Waiting time distribution for electron transport in a molecular junction with electron-vibration interaction

Daniel S. Kosov

On the elementary level, electronic current consists of individual electron tunnelling events that are separated by random time intervals. The waiting time distribution is a probab…

cond-mat.mes-hall2016★ 20 cited

Distribution of residence times as a marker to distinguish different pathways for quantum transport

Samuel L. Rudge, Daniel S. Kosov

Electron transport through a nanoscale system is an inherently stochastic quantum mechanical process. Electric current is a time series of electron tunnelling events separated by r…