Multiple time scale analysis of an anharmonic crystal

I. C. Khoo, Y. K. Wang

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We use the multiple time scale perturbation method to study the lattice dynamics of an enharmonic crystal. The Heisenberg equations of motion for the creation and annihilation operators are solved, and the frequency shift and the decay constants are found to the second order. We also discuss briefly how to apply our solution to calculate the correlation function.

Original languageEnglish (US)
Pages (from-to)222-227
Number of pages6
JournalJournal of Mathematical Physics
Issue number2
StatePublished - 1975

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Mathematical Physics


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