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

Keeping a quantum bit alive by optimized pi-pulse sequences.

Götz S Uhrig1

  • 1Lehrstuhl für Theoretische Physik I, Universität Dortmund, Otto-Hahn Strasse 4, 44221 Dortmund, Germany. goetz.uhrig@uni-dortmund.de

Physical Review Letters
|March 16, 2007
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

First-principles simulation of spin diffusion in static solids using dynamic mean-field theory.

Science advances·2026
Same author

Coherence transfer from optically induced THz magnons to charges.

Nature communications·2026
Same author

Antiferromagnetic Chern insulator with large charge gap in heavy transition-metal compounds.

Scientific reports·2024
Same author

Microscopic understanding of NMR signals by dynamic mean-field theory for spins.

Solid state nuclear magnetic resonance·2024
Same author

Positivity of the Spectral Densities of Retarded Floquet Green Functions.

Physical review letters·2019
Same author

Anomalous behavior of control pulses in presence of noise with singular autocorrelation.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2014
Same journal

Erratum: Bacterial Turbulence at Compressible Fluid Interfaces [Phys. Rev. Lett. 136, 138301 (2026)].

Physical review letters·2026
Same journal

Unveiling Light-Quark Yukawa Flavor Structure via Dihadron Fragmentation at Lepton Colliders.

Physical review letters·2026
Same journal

Adaptable Route to Fast Coherent State Transport via Bang-Bang-Bang Protocols.

Physical review letters·2026
Same journal

Topological Transition and Emergence of Elasticity of Dislocation in Skyrmion Lattice: Beyond Kittel's Magnetic-Polar Analogy.

Physical review letters·2026
Same journal

Pound-Drever-Hall Method for Superconducting-Qubit Readout.

Physical review letters·2026
Same journal

Coupling a ^{73}Ge Nuclear Spin to an Electrostatically Defined Quantum Dot in Silicon.

Physical review letters·2026
See all related articles

This study introduces an optimized pulse sequence to preserve quantum bit coherence, even with strong environmental interactions. This method enhances quantum computing stability by minimizing errors caused by memory and backaction effects.

Area of Science:

  • Quantum Information Science
  • Quantum Computing
  • Quantum Error Correction

Background:

  • Maintaining quantum bit (qubit) coherence is crucial for quantum computation.
  • Environmental interactions and backaction effects degrade qubit coherence.

Purpose of the Study:

  • To propose a general strategy for preserving qubit coherence.
  • To develop an optimized pulse sequence for dynamic decoupling.

Main Methods:

  • Rigorous analytical derivation including memory and backaction effects.
  • Extension and optimization of the Carr-Purcell-Meiboom-Gill (CPMG) cycle.
  • Development of a novel pi-pulse sequence.

Main Results:

  • The proposed strategy effectively maintains qubit coherence.

Related Experiment Videos

  • The optimized sequence demonstrates high efficiency, particularly under strong environmental coupling.
  • Analytical results rigorously account for all memory and backaction effects.

    • Conclusions:

    • The optimized pi-pulse sequence offers a robust method for quantum error suppression.
    • This strategy significantly improves the stability of quantum bits in noisy environments.
    • The findings contribute to advancing the feasibility of scalable quantum computing.