Centrifugal terms in the WKB approximation and semiclassical quantization of hydrogen

نویسندگان

  • Joachim Hainz
  • Hermann Grabert
چکیده

A systematic semiclassical expansion of the hydrogen problem about the classical Kepler problem is shown to yield remarkably accurate results. Ad hoc changes of the centrifugal term, such as the standard Langer modification where the factor l(l + 1) is replaced by (l + 1/2), are avoided. The semiclassical energy levels are shown to be exact to first order in h̄ with all higher order contributions vanishing. The wave functions and dipole matrix elements are also discussed.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

WKB expansion for the angular momentum and the Kepler problem: from the torus quantization to the exact one

We calculate the WKB series for the angular momentum and the non–relativistic 3-dim Kepler problem. This is the first semiclassical treatment of the angular momentum for terms beyond the leading WKB approximation. We explain why the torus quantization (the leading WKB term) of the full problem is exact, even if the individual torus quantization of the angular momentum and of the radial Kepler p...

متن کامل

WKB corrections to the energy splitting in double well potentials

Semiclassical quantization is very useful to understand the global behaviour of eigenfunctions and energy spectra of quantum systems, since it allows us to obtain analytic expressions. The leading semiclassical approximation (torus quantization) is just the first term of a certain h̄–expansion, which is called WKB (Maslov and Fedoriuk 1981). A systematic study of the accuracy of semiclassical ap...

متن کامل

Multicomponent WKB and Quantization

Hamiltonians whose symbols are not simply real valued, but matrix or, more generally, endomorphism valued functions appear in many places in physics, examples being the Dirac equation, multicomponent wave equations like electrodynamics in media, and Yang-Mills theories, and the Born-Oppenheimer approximation in molecular physics. Whereas the semiclassical and WKB approximation of scalar systems...

متن کامل

WKB to all orders and the accuracy of the semiclassical quantization

We perform a systematic WKB expansion to all orders for a one–dimensional system with potential V (x) = U0/ cos 2 (αx). We are able to sum the series to the exact energy spectrum. Then we show that any finite order WKB approximation fails to predict the individual energy levels within a vanishing fraction of the mean energy level spacing. PACS numbers: 03.65.-w, 03.65.Ge, 03.65.Sq Submitted to ...

متن کامل

Macroscopic Schroedinger quantization of the early chaotic solar system

Classical mechanics is compatible with Schroedinger’s equation without any approximation of the standard WKB semiclassical quantum type. In order to illustrate this property, we propose an exact Schroedinger theory for Nottale’s macro-quantization of the solar system in which neither semiclassical approximations nor the probabilistic Born postulate are assumed. We point out the existence and pr...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999