Schematic interactions with many degeneracies
نویسندگان
چکیده
منابع مشابه
Signed Phases and Fields Associated with Degeneracies
In the first part, expressions are given for the sign of the topological angle that is acquired upon making a loop around a degeneracy (”conical intersection”) point of two molecular energy surfaces. The expressions involve the partial derivatives (with respect to the nuclear coordinates) of the matrix elements of the coupling Hamiltonian. Examples are given of a few studied cases, such as of e...
متن کاملRobot Navigation with Schematic Maps
We outline an approach to high-level interaction with autonomous robots by means of schematic maps. Schematic maps are knowledge representation structures to encode qualitative spatial information about physical environments. We present a scenario in which robots rely on high-level knowledge from perception and instruction to perform navigation tasks in physical environments. We discuss the gen...
متن کاملOscillatory Integral Operators with Low–order Degeneracies
We prove sharp L estimates for oscillatory integral and Fourier integral operators for which the associated canonical relation C ⊂ T ∗ΩL × T ∗ΩR projects to T ∗ΩL and to T ∗ΩR with corank one singularities of type ≤ 2. This includes two-sided cusp singularities. Applications are given to operators with one-sided swallowtail singularities such as restricted X-ray transforms for well-curved line ...
متن کاملMinimizing Effective Many-Body Interactions
A simple two-level model is developed and used to test the properties of effective interactions for performing nuclear structure calculations in truncated model spaces. It is shown that the effective manybody interactions sensitively depend on the choice of the single-particle basis and they appear to be minimized when a self-consistent HartreeFock basis is used.
متن کاملVisual Navigation with Schematic Maps
A prototypical example of the operational dimensions of visual information communication is the use of schematic maps for visual navigation. The implementation of maps on location-sensitive or handheld devices has changed the preliminaries of common mapping techniques. By an analysis of selected examples, both historic and current, we want to open up the space for innovative map design options....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics E
سال: 2017
ISSN: 0218-3013,1793-6608
DOI: 10.1142/s0218301317500355