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

Phase Transitions02:31

Phase Transitions

23.6K
Whether solid, liquid, or gas, a substance's state depends on the order and arrangement of its particles (atoms, molecules, or ions). Particles in the solid pack closely together, generally in a pattern. The particles vibrate about their fixed positions but do not move or squeeze past their neighbors. In liquids, although the particles are closely spaced, they are randomly arranged. The position of the particles are not fixed—that is, they are free to move past their neighbors to...
23.6K
Phase Transitions01:21

Phase Transitions

43
A phase transition is the process in which a substance changes from one state of matter to another, like from a solid to a liquid, liquid to gas, or vice versa, at a specific temperature and under given pressure conditions. This change is spontaneous and is affected by alterations in temperature and pressure. These parameters impact the strength of the forces between molecules (intermolecular forces) in the substance.During a phase transition, both the initial and final phases of the substance...
43
Limits with Oscillating Discontinuities01:19

Limits with Oscillating Discontinuities

598
An oscillating discontinuity is a type of discontinuity in which a function’s values fluctuate infinitely often as the input approaches a particular point. Unlike jump discontinuities, where the function suddenly shifts between two values, or infinite discontinuities, where the function diverges without bound, an oscillating discontinuity arises from rapid back-and-forth variation. Because the function never stabilizes toward a single value, no finite limit exists at that point.One of the...
598
Phase Transitions: Sublimation and Deposition02:33

Phase Transitions: Sublimation and Deposition

20.8K
Some solids can transition directly into the gaseous state, bypassing the liquid state, via a process known as sublimation. At room temperature and standard pressure, a piece of dry ice (solid CO2) sublimes, appearing to gradually disappear without ever forming any liquid. Snow and ice sublimate at temperatures below the melting point of water, a slow process that may be accelerated by winds and the reduced atmospheric pressures at high altitudes. When solid iodine is warmed, the solid sublimes...
20.8K
Oscillations about an Equilibrium Position01:04

Oscillations about an Equilibrium Position

7.2K
Stability is an important concept in oscillation. If an equilibrium point is stable, a slight disturbance of an object that is initially at the stable equilibrium point will cause the object to oscillate around that point. For an unstable equilibrium point, if the object is disturbed slightly, it will not return to the equilibrium point. There are three conditions for equilibrium points—stable, unstable, and half-stable. A half-stable equilibrium point is also unstable, but is named so...
7.2K
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.7K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.7K

You might also read

Related Articles

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

Sort by
Same author

Ghost embedding bridging chemistry and one-body theories.

The Journal of chemical physics·2026
Same author

Variational Ground-State Quantum Adiabatic Theorem.

Physical review letters·2025
Same author

Mott resistive switching initiated by topological defects.

Nature communications·2024
Same author

Prognostic Role of Early Cardiac Magnetic Resonance in Myocardial Infarction With Nonobstructive Coronary Arteries.

JACC. Cardiovascular imaging·2023
Same author

Machine learning and physical based modeling for cardiac hypertrophy.

Heliyon·2023
Same author

Spin-Liquid Insulators Can Be Landau's Fermi Liquids.

Physical review letters·2023

Related Experiment Video

Updated: Mar 21, 2026

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

9.1K

Dynamical phase transitions and Loschmidt echo in the infinite-range XY model.

Bojan Žunkovič1, Alessandro Silva2, Michele Fabrizio3

  • 1Departamento de Física, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Casilla 487-3, Santiago, Chile Scuola Internazionale Superiore di Studi Avanzati (SISSA), Via Bonomea 265, Trieste, Italy.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|May 4, 2016
PubMed
Summary

This study compares two definitions of dynamical phase transitions in quantum systems. The research finds that Loschmidt echo non-analyticities are not robust and not always linked to standard transitions.

Keywords:
Loschmidt echonon-equilibriumquantum phase transitions

More Related Videos

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
05:45

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Published on: March 31, 2022

3.1K
Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions
10:02

Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions

Published on: May 27, 2021

4.6K

Related Experiment Videos

Last Updated: Mar 21, 2026

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

9.1K
Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging
05:45

Uncovering Hidden Dynamics of Natural Photonic Structures Using Holographic Imaging

Published on: March 31, 2022

3.1K
Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions
10:02

Neutron Spin Echo Spectroscopy as a Unique Probe for Lipid Membrane Dynamics and Membrane-Protein Interactions

Published on: May 27, 2021

4.6K

Area of Science:

  • Quantum physics
  • Condensed matter theory

Background:

  • Dynamical phase transitions (DPTs) are crucial for understanding non-equilibrium quantum systems.
  • Two common definitions involve equilibrium order parameters and Loschmidt echo behavior.

Purpose of the Study:

  • To compare two distinct definitions of DPTs in closed quantum systems.
  • To investigate the connection between these DPTs and equilibrium quantum phase transitions (QPTs).

Main Methods:

  • Exact solution of the dynamics for the infinite-range XY model.
  • Analysis of time-averaged equilibrium order parameters.
  • Examination of non-analyticities in the Loschmidt echo.

Main Results:

  • Non-analyticities in the Loschmidt echo are not robust against quantum fluctuations in the XY model.
  • These non-analyticities do not correspond to standard DPTs.
  • The existence of either DPT definition is not necessarily linked to an equilibrium QPT.

Conclusions:

  • The two notions of DPTs are not universally connected.
  • Loschmidt echo non-analyticities may not be reliable indicators of DPTs in all closed quantum systems.
  • Further research is needed to clarify the nature and robustness of DPTs.