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

Local and global distinguishability in quantum interferometry.

Gabriel A Durkin1, Jonathan P Dowling

  • 1Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109, USA. gabriel.durkin@qubit.org

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

Experimental Gaussian Boson sampling.

Science bulletin·2023
Same author

Emulating Quantum Teleportation of a Majorana Zero Mode Qubit.

Physical review letters·2021
Same author

Efficient Simulation of Loop Quantum Gravity: A Scalable Linear-Optical Approach.

Physical review letters·2021
Same author

Quantum-Limited Squeezed Light Detection with a Camera.

Physical review letters·2020
Same author

Quantum Beat between Sunlight and Single Photons.

Nano letters·2019
Same author

Thresholded Quantum LIDAR: Exploiting Photon-Number-Resolving Detection.

Physical review letters·2019
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

Quantum states

Area of Science:

  • Quantum optics
  • Quantum metrology
  • Statistical mechanics

Background:

  • Quantum states possess unique properties crucial for precision measurements.
  • Phase estimation is a fundamental task in quantum metrology.
  • Mach-Zehnder interferometers are key tools for phase sensing.

Purpose of the Study:

  • To establish a statistical distinguishability criterion for quantum state fitness in phase estimation.
  • To analyze local and global phase distinguishability regimes.
  • To explore the impact of photon number on distinguishability for various quantum states.

Main Methods:

  • Utilizing relative entropy for statistical distinguishability.
  • Applying the criterion within a Mach-Zehnder interferometer model.

Related Experiment Videos

  • Investigating the scaling of distinguishability with photon number.

    • Main Results:

    • Local phase distinguishability correlates with discrepancies in rotational energy.
    • The Heisenberg limit is confirmed as the ultimate bound for local phase sensitivity.
    • NOON states achieve the Heisenberg limit, while others offer better local-global trade-offs.

    Conclusions:

    • Relative entropy provides a robust measure for quantum phase estimation.
    • Understanding local and global distinguishability is key to optimizing quantum sensors.
    • Quantum state engineering can enhance phase sensitivity beyond classical limits.