Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

The Uncertainty Principle

The Uncertainty Principle

Werner Heisenberg considered the limits of how accurately one can measure properties of an electron or other microscopic particles. He determined that there is a fundamental limit to how accurately one can measure both a particle’s position and its momentum simultaneously. The more accurate the measurement of the momentum of a particle is known, the less accurate the position at that time is known and vice versa. This is what is now called the Heisenberg uncertainty principle. He...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Murine Eosinophilic and Neutrophilic Chronic Rhinosinusitis Models Reveal Phenotype-Specific Steroid Responses.

American journal of rhinology & allergy·2026

Same author

Two-photon induced coherence without induced emission.

Science advances·2025

Same author

Cell Type-Specific IL-5Rα Distribution and IL-5-Induced CCL11 Expression in Human Nasal Epithelium.

Allergy·2025

Same author

Robust and bright polarization-entangled photon sources exploiting non-critical phase matching without periodic poling.

Optics express·2025

Same author

Tunable up-conversion single-photon detector at telecom wavelengths.

Nanophotonics (Berlin, Germany)·2024

Same author

Qudit-based variational quantum eigensolver using photonic orbital angular momentum states.

Science advances·2024

Same journal

Erratum: Spectroscopy and Ground-State Transfer of Ultracold Bosonic ^{39}K^{133}Cs Molecules [Phys. Rev. Lett. 135, 203401 (2025)].

Physical review letters·2026

Same journal

Erratum: Lifetime of the ^{2}F_{7/2} Level in Yb^{+} for Spontaneous Emission of Electric Octupole Radiation [Phys. Rev. Lett. 127, 213001 (2021)].

Physical review letters·2026

Same journal

Laser-Plasma Based Seeded Free Electron Laser in the High-Gain Regime.

Physical review letters·2026

Same journal

Parent Hamiltonians for Stabilizer Quantum Many-Body Scars.

Physical review letters·2026

Same journal

Properties of Heavy Cosmic Nuclei Phosphorus, Chlorine, Argon, Potassium, and Calcium: Results from the Alpha Magnetic Spectrometer.

Physical review letters·2026

Same journal

Role of Spin-Isospin Symmetries in Nuclear β-Decays.

Physical review letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Oct 4, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

Heisenberg-Limited Metrology via Weak-Value Amplification without Using Entangled Resources.

Yosep Kim¹, Seung-Yeun Yoo¹, Yoon-Ho Kim¹

¹Department of Physics, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.

Physical Review Letters

|February 11, 2022

Summary

This summary is machine-generated.

Weak-value amplification (WVA) achieves amplified signal detection. A new iterative WVA scheme reaches Heisenberg-limited precision without entanglement, offering a practical metrology advancement.

More Related Videos

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Related Experiment Videos

Last Updated: Oct 4, 2025

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

Published on: September 5, 2019

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Area of Science:

Quantum metrology
Precision measurement science

Background:

Weak-value amplification (WVA) offers noise robustness for amplified signal detection, despite lower probabilities.
Current WVA methods achieving Heisenberg-limited precision rely on challenging macroscopic entangled resources.

Purpose of the Study:

To demonstrate a novel WVA scheme that achieves Heisenberg-limited precision without entanglement.
To show that iterative interactions, not entanglement itself, are key to entanglement-assisted WVA advantages.

Main Methods:

Developed a novel WVA scheme utilizing iterative interactions.
Analyzed the precision scaling of the proposed WVA scheme.

Main Results:

Achieved Heisenberg-limited precision scaling without requiring entangled resources.
Demonstrated that iterative interactions are the source of enhanced precision in WVA.

Conclusions:

The novel iterative WVA scheme provides a practical route to Heisenberg-limited precision.
This approach bypasses the need for fragile and complex entangled resources in precision metrology.