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 Concept Videos

Thomson's e/m Experiment01:19

Thomson's e/m Experiment

7.7K
In a beam of charged particles created by a heated cathode, the particles move at different speeds. However, many applications need a beam with uniform particle speeds. An arrangement known as a velocity selector uses electric and magnetic fields to pick particles with a particular speed from the beam.
A particle with charge q, speed v, and mass m enters an area from the top, where the magnetic and electric fields are perpendicular both to the particle's motion and to one another. The magnetic...
7.7K
The Pauli Exclusion Principle03:06

The Pauli Exclusion Principle

61.4K
The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
61.4K
The de Broglie Wavelength02:32

The de Broglie Wavelength

34.6K
In the macroscopic world, objects that are large enough to be seen by the naked eye follow the rules of classical physics. A billiard ball moving on a table will behave like a particle; it will continue traveling in a straight line unless it collides with another ball, or it is acted on by some other force, such as friction. The ball has a well-defined position and velocity or well-defined momentum, p = mv, which is defined by mass m and velocity v at any given moment. This is the typical...
34.6K
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

3.0K
Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
3.0K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

1.9K
Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...
1.9K
VSEPR Theory and the Effect of Lone Pairs04:01

VSEPR Theory and the Effect of Lone Pairs

54.2K
Effect of Lone Pairs of Electrons on Molecule Geometry
54.2K

You might also read

Related Articles

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

Sort by
Same author

Distinguishing thermal and pseudothermal light by testing the Siegert relation.

Optics express·2026
Same author

Coexistence of entanglement-based quantum channels with DWDM classical channels over hollow core fibre in a four node quantum communication network.

NPJ quantum information·2025
Same author

Simplest Kochen-Specker Set.

Physical review letters·2025
Same author

Test of the physical significance of Bell non-locality.

Nature communications·2025
Same author

Simplest Bipartite Perfect Quantum Strategies.

Physical review letters·2025
Same author

Establishing an end-to-end workflow for SNSPD fabrication and characterization.

Scientific reports·2024
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

Related Experiment Video

Updated: Mar 30, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

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

Published on: September 5, 2019

9.1K

Approaching Tsirelson's Bound in a Photon Pair Experiment.

Hou Shun Poh1, Siddarth K Joshi1, Alessandro Cerè1

  • 1Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore.

Physical Review Letters
|November 14, 2015
PubMed
Summary
This summary is machine-generated.

This experiment tested the Clauser-Horne-Shimony-Holt Bell inequality using entangled photon pairs. The results closely approach the Tsirelson bound and violate a proposed bound, challenging the idea that quantum mechanics is merely an effective theory.

More Related Videos

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.9K
An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
09:49

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers

Published on: October 23, 2018

16.6K

Related Experiment Videos

Last Updated: Mar 30, 2026

A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
07:56

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

Published on: September 5, 2019

9.1K
Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
12:19

Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source

Published on: April 4, 2017

8.9K
An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers
09:49

An Experimental Protocol for Femtosecond NIR/UV - XUV Pump-Probe Experiments with Free-Electron Lasers

Published on: October 23, 2018

16.6K

Area of Science:

  • Quantum Information Science
  • Foundations of Quantum Mechanics
  • Experimental Quantum Physics

Background:

  • Bell inequalities are crucial for testing the foundations of quantum mechanics.
  • Entanglement, a key quantum phenomenon, enables non-classical correlations.
  • Previous experiments have tested Bell inequalities, but high precision is needed to probe theoretical limits.

Purpose of the Study:

  • To experimentally test the Clauser-Horne-Shimony-Holt (CHSH) Bell inequality.
  • To investigate photon pairs in a maximally entangled polarization state.
  • To compare experimental results with theoretical bounds like the Tsirelson bound.

Main Methods:

  • Utilizing photon pairs prepared in a maximally entangled polarization state.
  • Performing measurements to obtain the Bell inequality parameter S.
  • Statistical analysis of experimental data to determine the value and uncertainty of S.

Main Results:

  • Observed a value of S=2.82759±0.00051 for the CHSH inequality.
  • The observed S value is very close to the Tsirelson bound of 2√2 (approximately 2.82843).
  • The experiment violated a proposed bound |S|≤2.82537 by 4.3 standard deviations.

Conclusions:

  • The experimental results provide strong evidence against local hidden variable theories.
  • The violation of Grinbaum's bound suggests quantum mechanics may be more fundamental than an effective theory.
  • This high-precision test contributes to understanding the nature of quantum reality and the limits of quantum correlations.