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

Surface Tension, Capillary Action, and Viscosity02:57

Surface Tension, Capillary Action, and Viscosity

28.6K
Surface Tension
The various IMFs between identical molecules of a substance are examples of cohesive forces. The molecules within a liquid are surrounded by other molecules and are attracted equally in all directions by the cohesive forces within the liquid. However, the molecules on the surface of a liquid are attracted only by about one-half as many molecules. Because of the unbalanced molecular attractions on the surface molecules, liquids contract to form a shape that minimizes the number...
28.6K
Principle of Linear Impulse and Momentum for a Single Particle01:20

Principle of Linear Impulse and Momentum for a Single Particle

2.1K
Linear momentum is a fundamental concept in physics that describes the motion of an object. It is a vector quantity, having a magnitude equal to the product of its mass and its velocity, and direction along the object's velocity. On the other hand, linear impulse, also known as momentum impulse, is a concept in physics related to the change in the linear momentum of an object. Impulse is a vector quantity defined as the product of force and the time over which the force is applied.
Delving...
2.1K
Viscosity of Fluid01:19

Viscosity of Fluid

2.2K
Viscosity measures the resistance a fluid offers to flow and deformation. It results from internal friction between layers of fluid moving relative to one another. Dynamic viscosity, denoted by the Greek letter mu (μ), quantifies the force needed to move one fluid layer over another. For Newtonian fluids like water and air, the relationship between the shearing stress and the rate of shearing strain is linear, meaning their viscosity remains constant regardless of the applied stress.
2.2K
Surface Tension of Fluid01:22

Surface Tension of Fluid

1.9K
Surface tension is a fundamental property of fluids, occurring at the boundary between a liquid and a gas or between two immiscible liquids. This phenomenon arises from the cohesive forces between molecules at the fluid's surface, creating an effect similar to a stretched elastic membrane. Inside each fluid, molecules are equally attracted in all directions by neighboring molecules, but surface molecules experience a net inward force, resulting in surface tension.
Surface tension varies...
1.9K
Capillarity in Fluid01:19

Capillarity in Fluid

1.6K
Capillarity describes the movement of liquid in small spaces without external forces acting on it. The capillarity is driven by surface tension and adhesive interactions between the liquid and surrounding solid surfaces. This effect is often seen in narrow tubes, porous materials, and fine particles.
Surface tension is crucial to capillarity. It results from cohesive forces between liquid molecules at the liquid-air boundary, forming a skin that resists external forces. When the capillary tube...
1.6K
Dimensionless Groups in Fluid Mechanics01:15

Dimensionless Groups in Fluid Mechanics

1.1K
Dimensionless groups in fluid mechanics provide simplified ratios that help analyze fluid behavior without relying on specific units. The Reynolds number (Re), which represents the ratio of inertial to viscous forces, distinguishes between laminar and turbulent flows, making it essential in the design of pipelines and aerodynamic surfaces. The Froude number (Fr), the ratio of inertial to gravitational forces, is particularly useful in predicting wave formation and hydraulic jumps in...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Genetic Basis of UV Bullseye Size Variations in Turnip Rape (Brassica rapa subsp. oleifera).

Plant biotechnology journal·2026
Same author

Symmetry-Energy Dependence of the Bulk Viscosity of Nuclear Matter.

Physical review letters·2025
Same author

A case of ICIs-associated arthritis caused by Toripalimab initially presenting as oedema in both lower limbs.

Journal of chemotherapy (Florence, Italy)·2025
Same author

Effective Action for Relativistic Hydrodynamics from the Crooks Fluctuation Theorem.

Physical review letters·2025
Same author

Parallel loss of anthocyanins triggers the incipient sympatric speciation in an alpine ginger.

Plant diversity·2025
Same author

Development and application of a sex-linked marker for Herpetospermum pedunculosum based on whole-genome resequencing.

Genes & genetic systems·2025

Related Experiment Video

Updated: May 4, 2026

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids
10:09

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids

Published on: March 6, 2014

11.8K

Emergent viscous hydrodynamics from a single quantum particle.

Zhi-Li Zhou1, Mauricio Hippert2,3, Nicki Mullins1

  • 1University of Illinois Urbana-Champaign, Department of Physics and Illinois Center for Advanced Studies of the Universe, 1110 West Green Street, Urbana, Illinois 61801, USA.

Physical Review. E
|February 20, 2026
PubMed
Summary
This summary is machine-generated.

Spatial decoherence drives hydrodynamic behavior in open quantum systems. This study shows how a quantum particle coupled to a thermal bath leads to Navier-Stokes equations, revealing emergent fluid dynamics.

More Related Videos

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

7.6K
Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
11:51

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Published on: February 22, 2018

8.2K

Related Experiment Videos

Last Updated: May 4, 2026

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids
10:09

Fast Imaging Technique to Study Drop Impact Dynamics of Non-Newtonian Fluids

Published on: March 6, 2014

11.8K
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

7.6K
Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions
11:51

Visually Based Characterization of the Incipient Particle Motion in Regular Substrates: From Laminar to Turbulent Conditions

Published on: February 22, 2018

8.2K

Area of Science:

  • Quantum physics
  • Statistical mechanics
  • Condensed matter theory

Background:

  • Open quantum systems exhibit complex dynamics influenced by their environment.
  • Understanding the emergence of macroscopic phenomena like hydrodynamics from microscopic quantum interactions is a key challenge.

Purpose of the Study:

  • To investigate how spatial decoherence in open quantum systems can lead to hydrodynamic behavior.
  • To establish a connection between quantum dynamics and classical fluid equations.

Main Methods:

  • Investigated a single nonrelativistic quantum particle coupled to a thermal bath (Caldeira-Leggett model).
  • Utilized decoherence in the position representation by expanding the reduced density matrix.
  • Truncated the resulting power series to derive hydrodynamic equations.

Main Results:

  • Derived dissipative transient hydrodynamic equations by truncating the power series at second order.
  • Showcased that transport coefficients are determined by the damping constant γ.
  • Demonstrated that the asymptotic limit yields the Navier-Stokes equations for a compressible fluid with drag.

Conclusions:

  • Spatial decoherence is a mechanism for the onset of hydrodynamic behavior in open quantum systems.
  • The study provides a microscopic foundation for hydrodynamic descriptions in systems coupled to large thermal environments.
  • Connects quantum phenomena to classical fluid dynamics, with implications for quark-gluon plasma simulations.