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

Squeezed-state purification with linear optics and feedforward.

O Glöckl1, U L Andersen, R Filip

  • 1Institut für Optik, Information und Photonik, Max-Planck Forschungsgruppe, Universität Erlangen-Nürnberg, Günther-Scharowsky-Strasse 1/Bau 24, 91058 Erlangen, Germany. gloeckl@kerr.physik.uni-erlangen.de

Physical Review Letters
|October 10, 2006
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

Bone turnover markers in patients with inflammatory bowel disease in remission: a cross-sectional comparison of anti-TNFα therapy with conventional maintenance therapy.

Frontiers in medicine·2026
Same author

Near single-photon imaging in the shortwave infrared using homodyne detection.

Proceedings of the National Academy of Sciences of the United States of America·2023
Same author

Optimizing the generation of polarization squeezed light in nonlinear optical fibers driven by femtosecond pulses.

Optics express·2023
Same author

Cryogenic and hermetically sealed packaging of photonic chips for optomechanics.

Optics express·2022
Same author

Vacuum breakdown in magnetic dipole wave by 10-PW class lasers.

Physical review. E·2022
Same author

Particle trajectories, gamma-ray emission, and anomalous radiative trapping effects in magnetic dipole wave.

Physical review. E·2022
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

Researchers developed a new method for purifying quantum states using only basic optical components. This technique significantly reduces noise while minimally impacting the quantum squeezing, enhancing quantum communication protocols.

Area of Science:

  • Quantum Optics
  • Quantum Information Science

Background:

  • Mixed squeezed Gaussian states are crucial for quantum information processing.
  • Purification of these states is essential to minimize noise and preserve quantum properties.
  • Existing purification methods often involve complex setups or significant state degradation.

Purpose of the Study:

  • To propose and experimentally demonstrate an optimal and deterministic linear optical purification scheme for mixed squeezed Gaussian states.
  • To provide control over the trade-off between purification effectiveness and squeezing loss.
  • To enhance the performance of quantum informational protocols.

Main Methods:

  • Utilizing only linear optical elements and homodyne detectors.
  • Developing a scheme for deterministic purification, avoiding probabilistic outcomes.

Related Experiment Videos

  • Implementing a controllable process to balance purification efficacy and squeezing degradation.

    • Main Results:

    • Experimental demonstration of the proposed purification scheme.
    • Achieved a tenfold reduction in thermal noise.
    • Observed only an 11% degradation in squeezing.
    • Proved the optimality of the developed protocol.

    Conclusions:

    • The proposed linear optical scheme offers an efficient and controllable method for purifying mixed squeezed Gaussian states.
    • The technique successfully reduces noise while maintaining high fidelity of quantum squeezing.
    • This advancement has direct applications in improving quantum dense coding and entanglement generation protocols.