Numerical simulations of time-resolved quantum electronics

@article{Gaury2014NumericalSO,
  title={Numerical simulations of time-resolved quantum electronics},
  author={B. Gaury and J. Weston and M. Santin and M. Houzet and C. Groth and X. Waintal},
  journal={Physics Reports},
  year={2014},
  volume={534},
  pages={1-37}
}
Abstract Numerical simulation has become a major tool in quantum electronics both for fundamental and applied purposes. While for a long time those simulations focused on stationary properties (e.g. DC currents), the recent experimental trend toward GHz frequencies and beyond has triggered a new interest for handling time-dependent perturbations. As the experimental frequencies get higher, it becomes possible to conceive experiments which are both time-resolved and fast enough to probe the… Expand
Recent progress in the simulation of time-resolved quantum nanoelectronics
Finite frequency quantum transport is a bit like particle physics; accessing higher frequencies in experiments unlocks new physics. Keeping in mind that 1 Kelvin corresponds roughly to 20 GHz (hν =Expand
Dynamical control of interference using voltage pulses in the quantum regime.
TLDR
It is shown that extremely fast pulses provide a conceptually new tool for manipulating quantum information: the possibility to dynamically engineer the interference pattern of a quantum system. Expand
Classical and quantum spreading of a charge pulse
With the technical progress of radio-frequency setups, high frequency quantum transport experiments have moved from theory to the lab. So far the standard theoretical approach used to treat suchExpand
Atomistic quantum transport approach to time-resolved device simulations
Having access to time-resolved quantum transport data is beneficial for more accurate calculation of energy/delay device characteristics during turn on, for studying novel effects based on the waveExpand
Towards realistic time-resolved simulations of quantum devices
We report on our recent efforts to perform realistic simulations of large quantum devices in the time domain. In contrast to d.c. transport where the calculations are explicitly performed at theExpand
Numerical Methods for Time-Resolved Quantum Nanoelectronics
Recent technical progress in the field of quantum nanoelectronics have lead toexciting new experiments involving coherent single electron sources.When quantum electronic devices are manipulated onExpand
Charge and spin dynamics driven by ultrashort extreme broadband pulses: a theory perspective
This article gives an overview on recent theoretical progress in controlling the charge and spin dynamics in low-dimensional electronic systems by means of ultrashort and ultrabroadbandExpand
Linear scaling quantum transport methodologies
In recent years, the role of predictive computational modeling has become a cornerstone for the study of fundamental electronic, optical, and thermal properties in complex forms of condensed matter,Expand
Emergence of Landauer transport from quantum dynamics: A model Hamiltonian approach.
TLDR
This article constructs a very general expression for time-dependent current in an electrode-molecule-electrode arrangement and illustrates the emergence of Landauer transport from the authors' simulations without the assumption of time-independent charge flow. Expand
Time-dependent simulation and analytical modelling of electronic Mach-Zehnder interferometry with edge-states wave packets.
TLDR
An analytical model, also accounting for the finite spatial dispersion of the carriers, able to reproduce the effects of the spatial localization of carriers on the interference pattern is presented. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 92 REFERENCES
Time-dependent quantum transport: Direct analysis in the time domain
We present a numerical approach for solving time-dependent quantum transport problems in molecular electronics. By directly solving Green’s functions in the time domain, this approach does not relyExpand
Time-dependent quantum transport far from equilibrium : An exact nonlinear response theory
In this work, we present a theory to calculate the time-dependent current flowing through an arbitrary noninteracting nanoscale phase-coherent device connected to arbitrary noninteracting externalExpand
An efficient method for quantum transport simulations in the time domain
Abstract An approximate method based on adiabatic time dependent density functional theory (TDDFT) is presented, that allows for the description of the electron dynamics in nanoscale junctions underExpand
Time-dependent quantum transport: A practical scheme using density functional theory
TLDR
The implementation has been done assuming clamped ions and it is discussed how it can be extended to include dissipation due to electron-phonon coupling through the combined simulation of the electron-ion dynamics as well as electron-electron correlations. Expand
Numerical toolkit for electronic quantum transport at finite frequency
Building on the many existing algorithms for calculating the DC transport properties of quantum tight-binding models, we develop a systematic approach that expresses finite frequency observables inExpand
Time-dependent quantum transport and power-law decay of the transient current in a nano-relay and nano-oscillator
Time-dependent nonequilibrium Green’s functions are used to study electron transport properties in a device consisting of two linear chain leads and a time-dependent interlead coupling that isExpand
Time-dependent approach to electron pumping in open quantum systems
We use a recently proposed time-dependent approach to investigate the motion of electrons in quantum pump device configurations. The occupied one-particle states are propagated in real time andExpand
Integer and fractional charge Lorentzian voltage pulses analyzed in the framework of photon-assisted shot noise
We study the injection $n$ of electrons in a quantum conductor using voltage pulses applied on a contact. We particularly consider the case of Lorentzian voltage pulses. When carrying integer charge,Expand
Shot noise in mesoscopic conductors
Abstract Theoretical and experimental work concerned with dynamic fluctuations has developed into a very active and fascinating subfield of mesoscopic physics. We present a review of this developmentExpand
Modeling time-dependent current through electronic open channels using a mixed time-frequency solution to the electronic equations of motion
A nonequilibrium Green's function model based on time-dependent perturbation theory is developed to propagate electronic structure and molecular conductance of extended electrode-molecule-electrodeExpand
...
1
2
3
4
5
...