Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Quantum bits with polyacetylene.

Andre Elvas Pereira da Silva1, Geraldo Magela E Silva

  • 1Institute of Physics, University of Brasília, 70919-970, DF, Brazil. magela@fis.unb.br

Journal of Computational Chemistry
|May 2, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Width effects on bilayer graphene nanoribbon polarons.

Physical chemistry chemical physics : PCCP·2024
Same author

Quasiparticle dynamics by effective [Formula: see text]-field distortion.

Scientific reports·2022
Same author

Smooth gap tuning strategy for cove-type graphene nanoribbons.

RSC advances·2022
Same author

Charge localization and hopping in a topologically engineered graphene nanoribbon.

Scientific reports·2021
Same author

Dynamical Mechanism of Polarons and Bipolarons in Poly(p-Phenylene Vinylene).

Scientific reports·2019
Same author

Effective Mass of Quasiparticles in Armchair Graphene Nanoribbons.

Scientific reports·2019

Polyacetylene chains can function as quantum bits by controlling soliton pairs. Modifying impurity molecules offers a more effective method than electric fields for achieving quantum bit behavior.

Area of Science:

  • Condensed Matter Physics
  • Quantum Computing

Background:

  • Investigating novel physical systems for quantum bit (qubit) implementation is crucial for advancing quantum computing.
  • Polyacetylene chains offer a unique system due to their dynamic properties and potential for hosting soliton pairs.

Purpose of the Study:

  • To determine the dynamics of a polyacetylene single chain for physical quantum bit implementations.
  • To analyze the behavior of soliton pairs and their associated energy levels as qubits.
  • To compare the efficacy of electric fields versus impurity molecules in controlling qubit properties.

Main Methods:

  • Modeling the polyacetylene chain using a modified Pariser-Parr-Pople Hamiltonian.
  • Including external electric field effects and impurity molecule parameters in the model.

Related Experiment Videos

  • Numerical integration of equations of motion to analyze energy level separation.

    • Main Results:

    • Varying electric field intensity/duration and impurity parameters (intensity, number, position) affects soliton pair energy levels.
    • Two control methods were compared: electric field manipulation and impurity parameter adjustment.
    • Changes in impurity parameters significantly impacted energy level separation, leading to quantum bit behavior.

    Conclusions:

    • Impurity molecule modification is a more effective strategy than electric fields for controlling soliton pair energy levels in polyacetylene.
    • Achieved quantum bit behavior in a polyacetylene chain by optimizing impurity parameters.
    • Identified critical values for soliton distance, field intensity, and impurities for qubit functionality.