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

Pseudogaps in the 2D Hubbard Model.

Huscroft1, Jarrell, Maier

  • 1Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221-0011.

Physical Review Letters
|January 3, 2001
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

[Cocultures between primary parenchymal and nonparenchymal liver cells improve the reliability of results from in vitro toxicity testing]

ALTEX·2000
Same author

Invited critique

Archives of surgery (Chicago, Ill. : 1960)·2000
Same author

Spectroscopy of excited states of carbon anions above the photodetachment threshold

Faraday discussions·2000
Same author

Origin of surface conductivity in diamond

Physical review letters·2000
Same author

Controlling cold atoms using nanofabricated surfaces: atom chips

Physical review letters·2000
Same author

Similarities between the hubbard and periodic anderson models at finite temperatures

Physical review letters·2000
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

We investigate charge pseudogaps in the 2D Hubbard model, finding they persist at half-filling with non-Fermi-liquid behavior. Dynamical Cluster Approximation calculations reveal insights into pseudogap behavior and pair susceptibility at finite doping.

Area of Science:

  • Condensed Matter Physics
  • Quantum Many-Body Theory

Background:

  • The 2D Hubbard model is a fundamental model for understanding strongly correlated electron systems.
  • Pseudogaps are enigmatic features observed in the electronic spectra of various materials, including high-temperature superconductors.

Purpose of the Study:

  • To investigate the nature and persistence of pseudogaps in the 2D Hubbard model.
  • To analyze the impact of computational methods, specifically finite-size and Dynamical Cluster Approximation (DCA) quantum Monte Carlo, on pseudogap characterization.
  • To explore the behavior of the system at finite doping.

Main Methods:

  • Finite-size quantum Monte Carlo calculations.
  • Dynamical Cluster Approximation (DCA) quantum Monte Carlo simulations.
  • Analysis of electronic spectra, self-energy, and pair susceptibility.

Related Experiment Videos

Main Results:

  • A charge pseudogap, signaling non-Fermi-liquid behavior in the self-energy, persists in the thermodynamic limit at half-filling.
  • The DCA method tends to underestimate the pseudogap width, while finite-size effects tend to overestimate it.
  • No spin pseudogap is observed at half-filling.
  • A divergent d-wave pair susceptibility is found at finite doping.

Conclusions:

  • The charge pseudogap is a robust feature of the 2D Hubbard model at half-filling, distinct from a spin pseudogap.
  • Computational methods introduce systematic errors in pseudogap width determination.
  • The emergence of a divergent d-wave pair susceptibility at finite doping suggests pairing instabilities.