Dynamical control of interference using voltage pulses in the quantum regime.

@article{Gaury2014DynamicalCO,
  title={Dynamical control of interference using voltage pulses in the quantum regime.},
  author={B. Gaury and X. Waintal},
  journal={Nature communications},
  year={2014},
  volume={5},
  pages={
          3844
        }
}
As a general trend, nanoelectronics experiments are shifting towards frequencies so high that they become comparable to the device's internal characteristic time scales, resulting in new opportunities for studying the dynamical aspects of quantum mechanics. Here we theoretically study how a voltage pulse (in the quantum regime) propagates through an electronic interferometer (Fabry-Perot or Mach-Zehnder). We show that extremely fast pulses provide a conceptually new tool for manipulating… 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
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
Time-Domain Spectroscopy of Mesoscopic Conductors Using Voltage Pulses.
The development of single-electron sources has paved the way for a novel type of experiments in which individual electrons are emitted into a quantum-coherent circuit. In one approach,Expand
Quantum tomography of electrical currents
TLDR
A quantum tomography protocol is developed and demonstrated which extracts the generated electron and hole wavefunctions and their emission probabilities from any electrical current and combines two-particle interferometry with signal processing. Expand
Unveiling the bosonic nature of an ultrashort few-electron pulse
TLDR
Time-of-flight measurements of ultrashort few-electron charge pulses injected into a quasi one-dimensional quantum conductor are reported on to demonstrate a powerful probe for directly investigating real-time dynamics of fractionalisation phenomena in low-dimensional conductors. Expand
Theory of AC quantum transport with fully electrodynamic coupling
With the continued scaling of microelectronic devices along with the growing demand of high-speed wireless telecommunications technologies, there is increasing need for high-frequency device modelingExpand
Pseudorandom binary injection of levitons for electron quantum optics
The recent realization of single electron sources lets envision performing electron quantum optics experiments, where electrons can be viewed as flying qubits propagating in a ballistic conductor. ToExpand
Coherent control of single electrons: a review of current progress.
TLDR
The present state of the art of the control of propagating quantum states at the single-electron level and its potential application to quantum information processing is reviewed and an outlook and future challenges in the field are presented. Expand
Dynamical Scheme for Interferometric Measurements of Full-Counting Statistics.
TLDR
This work proposes a dynamical scheme for measuring the full-counting statistics in a mesoscopic conductor using an electronic Mach-Zehnder interferometer and considers measuring the entanglement entropy generated by partitioning electrons on a quantum point contact. Expand
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
...
1
2
3
4
...

References

SHOWING 1-10 OF 40 REFERENCES
Numerical simulations of time-resolved quantum electronics
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.Expand
Minimal-excitation states for electron quantum optics using levitons
TLDR
It is reported that such quasiparticles (hereafter termed levitons) can be generated on demand in a conductor by applying voltage pulses to a contact, and identified in the energy domain with shot-noise spectroscopy and in the time domain with electronic Hong–Ou–Mandel noise correlations. Expand
Quantum detection of electronic flying qubits in the integer quantum Hall regime
We consider a model of a detector of ballistic electrons at the edge of a two-dimensional electron gas in the integer quantum Hall regime. The electron is detected by capacitive coupling to a gateExpand
Fabry - Perot interference in a nanotube electron waveguide
TLDR
This work describes an example of a coherent molecular electronic device whose behaviour is explicitly dependent on quantum interference between propagating electron waves—a Fabry–Perot electron resonator based on individual single-walled carbon nanotubes with near-perfect ohmic contacts to electrodes. Expand
An electronic Mach–Zehnder interferometer
TLDR
This device is the first electronic analogue of the optical Mach–Zehnder interferometer, and opens the way to measuring interference of quasiparticles with fractional charges, and is highly sensitive and exhibits very high visibility. Expand
Electron counting statistics and coherent states of electric current
A theory of electron counting statistics in quantum transport is presented. It involves an idealized scheme of current measurement using a spin 1/2 coupled to the current so that it precesses at theExpand
Terahertz time-domain measurement of ballistic electron resonance in a single-walled carbon nanotube.
TLDR
The first terahertz electrical measurements of single-walled carbon nanotube transistors performed in the time domain are described, showing that the high-frequency electron response is dominated by single-particle excitations rather than collective plasmon modes. Expand
Direct measurement of the coherence length of edge states in the integer quantum Hall regime.
TLDR
The results provide the first accurate determination of l_(phi) in the quantum Hall regime, which is the finite temperature coherence length of edge states in the integer quantum Hall effect regime. Expand
Electrical control of a solid-state flying qubit.
TLDR
The transport and manipulation of qubits over distances of 6 µm within 40 ps are reported, in an Aharonov-Bohm ring connected to two-channel wires that have a tunable tunnel coupling between channels. Expand
Noise in an ac biased junction: Nonstationary Aharonov-Bohm effect.
We study excess noise in a quantum conductor in the presence of constant voltage and alternating external field. Due to a two particle interference effect caused by Fermi correlations the noise isExpand
...
1
2
3
4
...