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

States of Matter and Phase Changes00:59

States of Matter and Phase Changes

5.0K
The internal energy of a substance—the total kinetic energy of all its molecules and the potential energy of their associated forces—depends on the strength of the intermolecular forces in the condensed phases and the pressure exerted on the substance. The internal energy of a substance is the highest in the gaseous state, the lowest in the solid state, and intermediate in the liquid state. Phase transitions are caused by changes in physical conditions, such as temperature and...
5.0K
Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

12.2K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
12.2K
Trends in Lattice Energy: Ion Size and Charge02:54

Trends in Lattice Energy: Ion Size and Charge

26.8K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
26.8K
Classifying Matter by State02:49

Classifying Matter by State

104.6K
Chemistry is the study of matter and the changes it undergoes. Matter is anything that has mass and occupies space. Matter is all around us; the air, water, soil, mountains, even our bodies are all examples of matter. Matter is divided into three states — solid, liquid, and gas — that are commonly found on earth. The fourth state of matter, plasma, occurs naturally in the interiors of stars. 
104.6K
Classifying Matter by Composition03:35

Classifying Matter by Composition

91.5K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures. 
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated. 
A mixture is composed of two or...
91.5K
Bewley Lattice Diagram01:12

Bewley Lattice Diagram

1.5K
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
1.5K

You might also read

Related Articles

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

Sort by
Same author

Training thermodynamic computers by gradient descent.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Impact of solvent forces and broken symmetry on the assembly of designed proteins at a liquid-solid interface.

Nature communications·2026
Same author

Generative Thermodynamic Computing.

Physical review letters·2026
Same author

Nonlinear thermodynamic computing out of equilibrium.

Nature communications·2026
Same author

Improving noisy free-energy measurements by adding more noise.

Physical review. E·2025
Same author

Neural units with time-dependent functionality.

Physical review. E·2025

Related Experiment Video

Updated: Feb 11, 2026

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions
11:38

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions

Published on: April 19, 2018

8.5K

Phase separation and large deviations of lattice active matter.

Stephen Whitelam1, Katherine Klymko2, Dibyendu Mandal3

  • 1Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA.

The Journal of Chemical Physics
|April 23, 2018
PubMed
Summary

Active Brownian particles exhibit spontaneous clustering and phase separation. A new lattice model demonstrates this motility-induced phase separation without attractions or velocity alignment, complementing off-lattice studies.

More Related Videos

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
08:32

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

13.0K
Measuring Active and Passive Tameness Separately in Mice
07:13

Measuring Active and Passive Tameness Separately in Mice

Published on: August 10, 2018

7.6K

Related Experiment Videos

Last Updated: Feb 11, 2026

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions
11:38

Combining Microfluidics and Microrheology to Determine Rheological Properties of Soft Matter during Repeated Phase Transitions

Published on: April 19, 2018

8.5K
Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting
08:32

Indirect Fabrication of Lattice Metals with Thin Sections Using Centrifugal Casting

Published on: May 14, 2016

13.0K
Measuring Active and Passive Tameness Separately in Mice
07:13

Measuring Active and Passive Tameness Separately in Mice

Published on: August 10, 2018

7.6K

Area of Science:

  • Physics
  • Soft Matter Physics
  • Statistical Mechanics

Background:

  • Active Brownian particles (ABPs) exhibit spontaneous clustering and phase separation, even without attractive forces or velocity alignment.
  • Existing lattice models fail to replicate this phenomenon, despite accounting for persistent particle motion with fluctuating directions.

Purpose of the Study:

  • To introduce and analyze a novel lattice model of active matter that exhibits motility-induced phase separation (MIPS).
  • To investigate the mechanisms driving MIPS in a lattice environment, specifically without velocity-alignment interactions.

Main Methods:

  • Development of a new lattice model for active matter incorporating persistent, directionally fluctuating particle movement.
  • Utilizing direct and rare-event sampling techniques to analyze dynamical trajectories.
  • Characterization of clustering and phase separation through static and dynamic order parameters.

Main Results:

  • The proposed lattice model successfully demonstrates motility-induced phase separation.
  • Clustering and phase separation in the model are associated with significant fluctuations in order parameters.
  • The model replicates MIPS phenomena observed in off-lattice systems.

Conclusions:

  • A lattice model can exhibit motility-induced phase separation without relying on inter-particle attractions or velocity alignment.
  • This lattice model offers a valuable complementary approach to off-lattice simulations for studying MIPS.
  • The findings highlight the role of persistent, fluctuating motion in driving collective behavior in active matter systems.