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

Van der Waals Interactions01:24

Van der Waals Interactions

69.7K
Atoms and molecules interact with each other through intermolecular forces. These electrostatic forces arise from attractive or repulsive interactions between particles with permanent, partial, or temporary charges. The intermolecular forces between neutral atoms and molecules are ion–dipole, dipole–dipole, and dispersion forces, collectively known as van der Waals forces.
69.7K
Intermolecular Forces03:13

Intermolecular Forces

68.3K
Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
68.3K
Intermolecular vs Intramolecular Forces03:00

Intermolecular vs Intramolecular Forces

95.4K
Intermolecular forces (IMF) are electrostatic attractions arising from charge-charge interactions between molecules. The strength of the intermolecular force is influenced by the distance of separation between molecules. The forces significantly affect the interactions in solids and liquids, where the molecules are close together. In gases, IMFs become important only under high-pressure conditions (due to the proximity of gas molecules). Intermolecular forces dictate the physical properties of...
95.4K
¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

2.5K
The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
2.5K
Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

62.9K
Noncovalent attractions are associations within and between molecules that influence the shape and structural stability of complexes. These interactions differ from covalent bonding in that they do not involve sharing of electrons.
Four types of noncovalent interactions are hydrogen bonds, van der Waals forces, ionic bonds, and hydrophobic interactions.
Hydrogen bonding results from the electrostatic attraction of a hydrogen atom covalently bonded to a strong-electronegative atom like oxygen,...
62.9K
Noncovalent Attractions in Biomolecules02:35

Noncovalent Attractions in Biomolecules

19.1K
19.1K

You might also read

Related Articles

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

Sort by
Same author

Nonclassicality and Coherent Error Detection via Pseudo-Entropy.

Entropy (Basel, Switzerland)·2025
Same author

X-ray phase measurements by time-energy correlated photon pairs.

Science advances·2025
Same author

Unraveling the Complexity of Parkinson's Disease: Insights into Pathogenesis and Precision Interventions.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2024
Same author

Discrete-Time Quantum Walk on Multilayer Networks.

Entropy (Basel, Switzerland)·2023
Same author

Weak measurements and quantum-to-classical transitions in free electron-photon interactions.

Light, science & applications·2023
Same author

Conservation laws and the foundations of quantum mechanics.

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

On the Meaning of Local Symmetries: Epistemic-ontological Dialectics.

Foundations of physics·2025
Same journal

Atemporality from Conservation Laws of Physics in Lorentzian-Euclidean Black Holes.

Foundations of physics·2025
Same journal

The Unbearable Indefiniteness of Spacetime.

Foundations of physics·2025
Same journal

Eliminating the 'Impossible': Recent Progress on Local Measurement Theory for Quantum Field Theory.

Foundations of physics·2024
Same journal

The Determinacy Problem in Quantum Mechanics.

Foundations of physics·2024
Same journal

Dressing vs. Fixing: On How to Extract and Interpret Gauge-Invariant Content.

Foundations of physics·2024
See all related articles

Related Experiment Video

Updated: Dec 29, 2025

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

8.0K

Interaction-Free Effects Between Distant Atoms.

Yakir Aharonov1,2,3, Eliahu Cohen4,3, Avshalom C Elitzur2,3

  • 11School of Physics and Astronomy, Tel Aviv University, 6997801 Tel-Aviv, Israel.

Foundations of Physics
|January 31, 2020
PubMed
Summary
This summary is machine-generated.

This study presents a quantum entanglement paradox where atoms become entangled even when no photon is exchanged. This interaction-free entanglement, a quantum Liar Paradox, can be experimentally realized and extended to multipartite systems.

Keywords:
EntanglementInteraction free measurementNonlocalityQuantum Zeno effectWeak measurements

More Related Videos

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.5K
An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

8.9K

Related Experiment Videos

Last Updated: Dec 29, 2025

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

8.0K
Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.5K
An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
11:03

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids

Published on: December 4, 2017

8.9K

Area of Science:

  • Quantum Mechanics
  • Quantum Information Theory

Background:

  • Entanglement is a key quantum phenomenon where particles remain connected regardless of distance.
  • Interaction-free measurements (IFM) allow detecting objects without direct interaction.

Purpose of the Study:

  • To present a Gedanken experiment demonstrating entanglement without photon exchange.
  • To explore the quantum-mechanical Liar Paradox and its implications for non-locality.
  • To propose experimental realizations using existing technologies.

Main Methods:

  • Gedanken experiment involving excited and ground-state atoms.
  • Application of Bell's theorem to 'no-exchange' scenarios.
  • Utilizing weak measurements for paradox elucidation.
  • Exploring the Two-State Vector Formalism and Heisenberg framework.

Main Results:

  • Atoms can become entangled through the mere possibility of photon exchange, even if no photon is detected.
  • Demonstration of a quantum Liar Paradox where 'no exchange' confirms entanglement.
  • Potential for repeated entanglement and multipartite non-local correlations without interaction.
  • Observation of the Quantum Zeno effect between distant atoms without photon exchange.

Conclusions:

  • The proposed experiment offers a novel route to interaction-free entanglement.
  • The study resolves a quantum-mechanical paradox using advanced formalisms.
  • Experimental verification is feasible with current quantum technologies.