التفاصيل البيبلوغرافية
| العنوان: |
Local scattering matrix for a degenerate avoided-crossing in the non-coupled regime. |
| المؤلفون: |
Higuchi, Kenta1 (AUTHOR) higuchi.kenta.en@ehime-u.ac.jp |
| المصدر: |
Letters in Mathematical Physics. Jun2024, Vol. 114 Issue 3, p1-24. 24p. |
| مصطلحات موضوعية: |
*S-matrix theory, *LANDAU-Zener formula |
| مستخلص: |
A Landau–Zener-type formula for a degenerate avoided-crossing is studied in the non-coupled regime. More precisely, a 2 × 2 system of first-order h-differential operator with O (ε) off-diagonal part is considered in 1D. Asymptotic behavior as ε h m / (m + 1) → 0 + of the local scattering matrix near an avoided-crossing is given, where m stands for the contact order of two curves of the characteristic set. A generalization including the cases with vanishing off-diagonals and non-Hermitian symbols is also given. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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