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

Robustness and diffusion of pointer states

Diosi1, Kiefer

  • 1Research Institute for Particle and Nuclear Physics, P.O. Box 49, H-1525 Budapest 114, Hungary.

Physical Review Letters
|October 13, 2000
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

The modulation of oestrogen receptor-alpha activity by melatonin in MCF-7 human breast cancer cells

European journal of cancer (Oxford, England : 1990)·2000
Same author

Comment on "Nonclassical states: An observable criterion"

Physical review letters·2000
Same author

Control of chemical reactions by feedback-optimized phase-shaped femtosecond laser pulses

Science (New York, N.Y.)·1998
Same author

Decoherence of black holes by Hawking radiation.

Physical review. D, Particles and fields·1996
Same author

Comment on "Quantum backreaction on 'Classical' variables."

Physical review letters·1996
Same author

Comment on "Reduced system dynamics from the N-body Schrödinger equation"

Physical review letters·1996
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

Classical properties emerge in open quantum systems via decoherence. This study identifies the distinguished local basis (pointer basis) using three methods, revealing localized Gaussian pointer states governed by quantum Langevin equations.

Area of Science:

  • Quantum mechanics
  • Statistical physics
  • Quantum information science

Background:

  • Open quantum systems interact with their environment, leading to decoherence.
  • Decoherence is crucial for the emergence of classical properties from quantum systems.
  • Markovian master equations describe systems where environmental memory effects are negligible.

Purpose of the Study:

  • To derive the distinguished local basis (pointer basis) for open quantum systems under Markovian dynamics.
  • To explore different theoretical approaches for identifying pointer states.
  • To understand the nature and dynamics of these pointer states.

Main Methods:

  • Analyzing the system's non-unitary evolution to identify pointer states that best approximate local evolution.

Related Experiment Videos

  • Minimizing local entropy production as a criterion for selecting pointer states.
  • Ensuring robustness of quantum and classical uncertainties to define pointer states.
  • Deriving quantum Langevin equations to describe the formation and diffusion of pointer states.

    • Main Results:

    • Three distinct theoretical approaches converge on the same set of pointer states.
    • The identified pointer states are localized Gaussian states.
    • The formation and diffusion dynamics of these pointer states are accurately described by quantum Langevin equations.

    Conclusions:

    • The distinguished local basis in Markovian open quantum systems consists of localized Gaussian states.
    • Quantum Langevin equations provide a powerful tool for describing the dynamics of decoherence and pointer state formation.
    • This work offers a unified perspective on the emergence of classicality in quantum systems.