Threshold resonances in a double well system
نویسندگان
چکیده
It is shown that the resonance reported by Szmytkowski and Szmytkowski [Phys. Lett. A 235 (1997) 217] is not a proximity resonance as defined by Heller [Phys. Rev. Lett. 77 (1996) 4122]. Rather, it can be related to a threshold resonance connected to the antisymmetric bound state of the two wells, which enters the continuum when the wells are one scattering length apart. In addition, a surprising disappearance of the low energy s-wave cross section of two nearby wells is discussed. c © 1999 Published by Elsevier Science B.V. PACS: 03.80+r; 03.65.Nk
منابع مشابه
Vibration Analysis of a Nonlinear System with a Nonlinear Absorber under the Primary and Super-harmonic Resonances (TECHNICAL NOTE)
Abstract In vibratory systems, linear and nonlinear vibration absorbers can be used to suppress the primary and super-harmonic resonance responses. In this paper, the behavior of a nonlinear system with a nonlinear absorber, under the primary and super-harmonic resonances is investigated. The stiffnesses of the main system and the absorber are cubically nonlinear and the dampers are linear. M...
متن کاملAnalyzing the internal resonances and energy exchange between modes of power system considering Frequency – Energy dependence using Pseudo-Arclength and shooting algorithm
The power system nonlinearity and its profound impact on the individual states of power system is first evaluated and the interaction between their constituent modes during the occurrence of internal mode resonance (IMR) is discussed in this paper. A typical dynamical feature of nonlinear systems is the frequency-energy dependence of their states and their corresponding constituent modes which ...
متن کاملبررسی تشدیدهای تداخل چند ترازی از طریق آهنگ‌های گذار در سیستم‌های شش ترازی قویاً تحریک شده
In this paper, we study a new kind of multiphoton resonances in a strongly driven six-level quantum system, where one of its levels is coupled individually with the other two levels that have the constant energy separation E. Near the multiphoton resonance condition, a different behavior for the number of even or odd photons was found qualitatively, which could be explained by considering two c...
متن کاملAbsolute cross sections for electronic excitation of furan by electron impact
We measured differential cross sections for exciting the three lowest electronically excited states in furan, as functions both of electron energy and of scattering angle. Emphasis of the present work is on recording detailed excitation functions, revealing resonances in the excitation process. The cross section for the first triplet state has a shoulder in the first 2 eV above threshold, assig...
متن کاملDominant Correlation Effects in Atomic Spectra
High double excitation of two-electron atoms has been investigated using hyperpherical coordinates within a modified adiabatic expansion technique. This modification creates a novel fictitious force leading to a spontaneous exchange symmetry breaking at high double excitation. The Pauli principle must therefore be regarded as approximation valid only at low excitation energy. Threshold electron...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1999