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

Erasable and unerasable correlations.

G M D'Ariano1, R Demkowicz-Dobrzański, P Perinotti

  • 1QUIT Group, Dipartimento di Fisica A. Volta and CNISM, via Bassi 6, I-27100 Pavia, Italy.

Physical Review Letters
|October 13, 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

Path-sum solution of the Weyl quantum walk in 3 + 1 dimensions.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences·2017
Same author

Experimental extraction of secure correlations from a noisy private state.

Physical review letters·2011
Same author

Optimal quantum tomography of States, measurements, and transformations.

Physical review letters·2009
Same author

Optimal quantum phase estimation.

Physical review letters·2009
Same author

Quantum circuit architecture.

Physical review letters·2008
Same author

Investigation of the photon statistics of parametric fluorescence in a traveling-wave parametric amplifier by means of self-homodyne tomography.

Optics letters·2007
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

Decorrelating quantum states can erase local information, a trade-off shown for universal cloning. Analytical solutions for two-qubit and two-qumode systems reveal decorrelable states and necessary noise levels.

Area of Science:

  • Quantum Information Theory
  • Quantum Optics
  • Quantum Computing

Background:

  • Quantum states often exhibit correlations that can complicate information processing.
  • Preserving local quantum information during decorrelation is a key challenge.

Purpose of the Study:

  • To investigate the fundamental trade-off between removing correlation and preserving local quantum information.
  • To find analytical solutions for decorrelating specific quantum systems.

Main Methods:

  • Proving theoretical limits for decorrelation using universal cloning.
  • Analytical derivation of decorrelation strategies for two-qubit systems.
  • Analytical derivation of decorrelation strategies for two-qumode Gaussian states.

Related Experiment Videos

Main Results:

  • Demonstrated that universal cloning-based decorrelation leads to complete local information erasure.
  • Provided analytical solutions for decorrelating two-qubit states.
  • Identified decorrelable states and minimum noise requirements for two-qumode Gaussian states.

Conclusions:

  • Decorrelation of quantum states inherently involves a loss of local information, especially when using universal cloning.
  • Analytical methods provide precise understanding and strategies for specific quantum systems like two qubits and two qumodes.