Accurate lower and upper bounds of the energy spectrum for the asymmetrical two-well potentials

TAŞELİ H.

International Journal of Quantum Chemistry, cilt.60, sa.2, ss.641-648, 1996 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 60 Sayı: 2
  • Basım Tarihi: 1996
  • Dergi Adı: International Journal of Quantum Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.641-648
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

Trigonometric basis sets are used in a Rayleigh-Ritz variational method for computing two-sided eigenvalue bounds of the Schrödinger equation in one dimension. The method is based on truncating the infinite interval and solving an eigenvalue problem which obeys the von Neumann and the Dirichlet boundary conditions, respectively. Highly accurate numerical results are presented for the asymmetrical two-well oscillators. © 1996 John Wiley & Sons, Inc.