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 Experiment Videos

Studying quantum spin systems through entanglement estimators.

Tommaso Roscilde1, Paola Verrucchi, Andrea Fubini

  • 1Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, USA.

Physical Review Letters
|November 5, 2004
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Giant Number-Parity Effect Leading to Spontaneous Symmetry Breaking in Finite-Size Quantum Spin Models.

Physical review letters·2025
Same author

Emerging Non-Hermitian Topology in a Chiral-Driven-Dissipative Bose-Hubbard Model.

Physical review letters·2025
Same author

Spectroscopy of elementary excitations from quench dynamics in a dipolar XY Rydberg simulator.

Science (New York, N.Y.)·2025
Same author

Symmetry: A Fundamental Resource for Quantum Coherence and Metrology.

Physical review letters·2025
Same author

Scalable Spin Squeezing from Critical Slowing Down in Short-Range Interacting Systems.

Physical review letters·2024
Same author

Measuring Bipartite Spin Correlations of Lattice-Trapped Dipolar Atoms.

Physical review letters·2024
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

Quantum phase transitions in antiferromagnetic chains are detected using entanglement. Entanglement vanishes below critical fields and reappears, indicating a quantum phase transition.

Area of Science:

  • Condensed Matter Physics
  • Quantum Information Theory

Background:

  • Anisotropic S=1/2 antiferromagnetic chains exhibit quantum phase transitions at zero temperature.
  • Entanglement of formation quantifies quantum correlations in many-body systems.

Purpose of the Study:

  • Investigate the field dependence of entanglement of formation in these chains.
  • Identify entanglement signatures of a T=0 field-driven quantum phase transition.

Main Methods:

  • Quantum Monte Carlo simulations were employed.
  • Analysis focused on entanglement estimators and their behavior near criticality.

Main Results:

  • Entanglement estimators showed abrupt changes at the quantum phase transition.
  • Entanglement vanished below the critical field, corresponding to a factorized state.

Related Experiment Videos

  • Multispin entanglement was significantly enhanced at the quantum-critical point, indicated by a minimum in the entanglement ratio.

    • Conclusions:

    • Entanglement estimators provide a novel method for detecting quantum phase transitions.
    • The study highlights the role of entanglement in characterizing quantum critical phenomena.