Phonon squeezed state in high-Tc superconductors

Takayuki Sota, Katsuo Suzuki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We study the phonon states in high Tc superconducting materials within a weak-coupling polaron model. It is confirmed that the squeezed state of phonons gives lower ground state energy of the whole system than the two-phonon coherent state and the displaced state proposed previously. We also examine a condition that the squeezed state occurs. It follows that the squeezed state can exist when the interband electron transfer is allowed in many-band system.

Original languageEnglish
Pages (from-to)1083-1084
Number of pages2
JournalPhysica B: Condensed Matter
Volume165-166
DOIs
Publication statusPublished - 1990 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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