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Gradient Echo Quantum Memory in Warm Atomic Vapor
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Frustration and quantum criticality.

Matthias Vojta1

  • 1Institut für Theoretische Physik, Technische Universität Dresden, 01062 Dresden, Germany.

Reports on Progress in Physics. Physical Society (Great Britain)
|March 16, 2018
PubMed
Summary
This summary is machine-generated.

Frustrated magnetism and quantum criticality in correlated materials are explored. Frustration can lead to exotic quantum phases, critical points, or unconventional ordering and crossovers, potentially causing multi-criticality.

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Area of Science:

  • Condensed Matter Physics
  • Quantum Materials Science

Background:

  • Frustrated magnetism arises from competing interactions in spin systems.
  • Quantum criticality describes phase transitions at absolute zero temperature.
  • Correlated-electron materials exhibit complex electronic behaviors.

Purpose of the Study:

  • To review the interplay between frustrated magnetism and quantum critical phenomena.
  • To cover theoretical concepts and experimental findings in correlated-electron materials.
  • To discuss frustration effects in both Mott insulators and metallic systems.

Main Methods:

  • Theoretical modeling of frustrated magnetic systems.
  • Analysis of quantum critical points and phase transitions.
  • Review of experimental results in correlated-electron materials.

Main Results:

  • Frustration can induce exotic quantum phases and quantum critical points.
  • Frustration may lead to conventional ordering with unconventional crossovers.
  • Competition of phases in frustrated systems can result in multi-criticality.

Conclusions:

  • Frustrated magnetism is a key ingredient for exotic quantum phenomena.
  • Understanding these systems is crucial for developing novel quantum materials.
  • The review highlights diverse behaviors driven by magnetic frustration and quantum criticality.