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Open Quantum Systems Decoherence

Fluctuation-driven quantum phase transitions in clean itinerant ferromagnets.

PubMed
Authors: Belitz D, Kirkpatrick TR

Year

2002

Paper ID

13117

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

82

Citations

48

Abstract

The quantum phase transition in clean itinerant ferromagnets is analyzed. It is shown that soft particle-hole modes invalidate Hertz's mean-field theory for d< or =3. A renormalized mean-field theory predicts a fluctuation-induced first order transition for 1<d< or =3, whose stability is analyzed by renormalization group techniques. Depending on microscopic parameter values, the first order transition can be stable, or be preempted by a fluctuation-induced second order transition. The critical behavior at the latter is determined. The results are in agreement with recent experiments.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2002 reference point for readers tracking recent quantum research.
  • The quantum phase transition in clean itinerant ferromagnets is analyzed.

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References & Citation Signals

[1] DOI https://doi.org/10.1103/PhysRevLett.89.247202 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/12484978/

Local Citation Graph (Related-Paper Links)

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External citation index: OpenAlex citation signal • updated 2026-06-13 02:31:23

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