Overbarrier reflection in quantum mechanics with multiple degrees of freedom
نویسندگان
چکیده
D. G. Levkov,* A. G. Panin, and S. M. Sibiryakov Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary Prospect 7a, Moscow 117312, Russia Moscow Institute of Physics and Technology, Institutskii per. 9, Dolgoprudny 141700, Moscow Region, Russia Theory Group, Physics Department, CERN, CH-1211 Geneva 23, Switzerland Received 10 April 2007; published 21 September 2007
منابع مشابه
On the over-barrier reflection in quantum mechanics with multiple degrees of freedom
We present an analytic example of two dimensional quantum mechanical system, where the exponential suppression of the probability of over–barrier reflection changes non-monotonically with energy. The suppression is minimal at certain “optimal” energies where reflection occurs with exponentially larger probability than at other energies.
متن کاملAn Efficient Strain Based Cylindrical Shell Finite Element
The need for compatibility between degrees of freedom of various elements is a major problem encountered in practice during the modeling of complex structures; the problem is generally solved by an additional rotational degree of freedom [1-3]. This present paper investigates possible improvements to the performances of strain based cylindrical shell finite element [4] by introducing an additio...
متن کاملReflection and Transmission in a Neutron-Spin Test of the Quantum Zeno Effect
The dynamics of a quantum system undergoing frequent “measurements,” leading to the so-called quantum Zeno effect, is examined on the basis of a neutron-spin experiment recently proposed for its demonstration. When the spatial degrees of freedom are duely taken into account, neutron-reflection effects become very important and may lead to an evolution which is totally different from the ideal c...
متن کاملRenormalizability of Semiquantized Fields
A definition is given, in the framework of stochastic quantization, for the dynamics of a system composed of classical and quantum degrees of freedom mutually interacting. It is found that the theory breaks reflection positivity, and hence it is unphysical. The Feynman rules for the Euclidean vacuum expectation values are derived and the perturbative renormalizability of the theory is analyzed....
متن کاملPhysics 215C: Quantum Field Theory
1 Ideas from quantum mechanics, I 8 1.1 Broken scale invariance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.2 Integrating out degrees of freedom . . . . . . . . . . . . . . . . . . . . . . . . 15 1.2.1 Attempt to consolidate understanding . . . . . . . . . . . . . . . . . 18 1.2.2 Wick rotation to real time. . . . . . . . . . . . . . . . . . . . . . . . . 20 1.3 Other ideas ...
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 2007