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

Habitat Fragmentation02:31

Habitat Fragmentation

20.8K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
20.8K
Mass Spectrometry: Molecular Fragmentation Overview01:20

Mass Spectrometry: Molecular Fragmentation Overview

5.2K
The ionization of a molecule into a molecular ion inside the mass spectrometer causes instability in the molecule's structure due to the loss of an electron. This eventually leads to the fragmentation or breaking of some bonds in the molecule. The fragmentation occurs predominantly at specific bonds to yield relatively stable fragments.
One type of fragmentation pattern is the cleavage of a single bond in the molecular ion. The cleavage leads to a radical and a cation. The cleavage can occur at...
5.2K
Compacting Factor test01:22

Compacting Factor test

458
The compacting factor test is a method used to assess the workability of concrete. It is  especially suitable for concrete mixes containing aggregates up to one and a half inches in size. This test involves specialized equipment consisting of two truncated cone-shaped hoppers and a cylinder, all with polished interior surfaces to minimize friction.
The procedure begins by placing concrete into the upper hopper without any compaction. Once filled, the bottom door of this hopper is opened,...
458
Boundary Conditions: Lossless Lines01:21

Boundary Conditions: Lossless Lines

368
Consider a single-phase, two-wire, lossless transmission line terminated by an impedance at the receiving end and a source with Thevenin voltage and impedance at the sending end. The line, with length, has a surge impedance and wave velocity determined by the line's inductance and capacitance.
At the receiving end, the boundary condition states that the voltage equals the product of the receiving-end impedance and current. This relationship is expressed as a function of the incident and...
368
Interference and Diffraction02:18

Interference and Diffraction

51.2K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
51.2K
Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule01:10

Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule

2.3K
In the AX proton spin system, proton A can sense the two spin states of a coupled proton X, resulting in a doublet NMR signal with two peaks of equal (1:1) intensity. When proton A is coupled to two equivalent protons (AX2 spin system), the spin states of each X can be aligned with or against the external field, creating three possible scenarios. This results in a 1:2:1  triplet signal, where the central peak corresponds to the chemical shift of A and is twice as large or intense as the...
2.3K

You might also read

Related Articles

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

Sort by
Same author

Putative buffering roles of two-way social support and psychological resilience in the association between nurse-patient conflict and situational emotional response: a cross-sectional correlational study among Chinese nursing interns.

BMC nursing·2026
Same author

Nurses' perceived trauma-informed climate and voice behavior for nursing care improvement: a moderated mediation model of psychological empowerment and cultural humility.

BMC nursing·2026
Same author

Astragaloside IV Attenuates Heart Failure by Modulating SCAD/DJ-1/SIRT1/FOXO3a Signaling Axis.

The American journal of Chinese medicine·2026
Same author

Steering the digital transformation of service-oriented organizations by job crafting and innovative work behavior: employee-driven adaptability.

Frontiers in psychology·2026
Same author

The effect of sodium restricted diet on the prognosis of heart failure patients: a systemic review and meta-analysis.

Frontiers in cardiovascular medicine·2026
Same author

Nonequilibrium universality of the nonreciprocally coupled O(n_{1})×O(n_{2}) model.

Physical review. E·2026
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: Dec 19, 2025

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.5K

Hilbert-Space Fragmentation from Strict Confinement.

Zhi-Cheng Yang1,2, Fangli Liu1,2, Alexey V Gorshkov1,2

  • 1Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA.

Physical Review Letters
|June 6, 2020
PubMed
Summary
This summary is machine-generated.

We found that strict confinement in spin models fragments Hilbert space, leading to distinct thermalizing and integrable subspaces. This fragmentation arises from domain-wall number and magnetization conservation, not just dipole conservation.

More Related Videos

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.4K
Achieving Efficient Fragment Screening at XChem Facility at Diamond Light Source
08:35

Achieving Efficient Fragment Screening at XChem Facility at Diamond Light Source

Published on: May 29, 2021

6.7K

Related Experiment Videos

Last Updated: Dec 19, 2025

Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

11.5K
Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures
10:56

Confocal Imaging of Confined Quiescent and Flowing Colloid-polymer Mixtures

Published on: May 20, 2014

12.4K
Achieving Efficient Fragment Screening at XChem Facility at Diamond Light Source
08:35

Achieving Efficient Fragment Screening at XChem Facility at Diamond Light Source

Published on: May 29, 2021

6.7K

Area of Science:

  • Quantum many-body physics
  • Condensed matter theory
  • High-energy physics

Background:

  • One-dimensional spin-1/2 models exhibit Hilbert space fragmentation under strict confinement.
  • Previous studies often linked fragmentation to dipole moment conservation.

Purpose of the Study:

  • Investigate Hilbert space fragmentation in spin-1/2 models without dipole conservation.
  • Identify alternative conserved quantities driving fragmentation.
  • Explore implications for thermalization and integrability.

Main Methods:

  • Analysis of one-dimensional spin-1/2 models with strict Ising domain wall confinement.
  • Requirement of two commuting U(1) conserved quantities: total domain-wall number and total magnetization.
  • Perturbative analysis in the confining limit of Z_{2} gauge theory coupled to fermionic matter.

Main Results:

  • Hilbert space fragmentation into exponentially many disconnected subspaces.
  • Demonstration that fragmentation arises from domain-wall number and magnetization conservation.
  • Identification of subspaces that thermalize and others that are integrable via Bethe ansatz.
  • Emergence of a hierarchy of timescales for fermionic motion.

Conclusions:

  • Hilbert space fragmentation is not solely dependent on dipole moment conservation.
  • The interplay of domain-wall number and magnetization conservation dictates fragmentation patterns.
  • The studied model offers a tunable platform for exploring quantum dynamics and can be experimentally realized.