Quantum Analog

New powerful tool flow is Quantum analog phase space :

UK-based physical Steuernagel Ole from the University of Hertfordshire, with Dimitris Kakofengitis and Georg Ritter, found that the "flow Wigner 'a powerful new tool is called the quantum analogue of spatial phase flow.
Provides information flow Wigner quantum dynamics similar to that obtained from the phase space trajectories in classical physics. Wigner flow can be used for displaying quantum dynamics. Additionally, and perhaps more importantly, the flow of aid Wigner abstract analysis of quantum dynamics using topological methods.
Ole Steuernagel, University of Science and Technology Research Institute, said: "Since the paths are not present in the phase space quantum physicists did not pay much attention to partners in flow fields, although they do not exist Now, our research shows that the quantum phase. spatial flow is well worth studying. "
In classical physics, phase space trajectories lead to flow fields that represent the system dynamics along their paths, which produce additional information about the behavior of a system.
Quantum theory of phase space trajectories do not exist because of Heisenberg uncertainty principle does not allow the formation of well-defined paths. But quantum physicists have not given up entirely on the phase space. The study of the second best option, the movement of the distributions of quantum physics' of phase space-based probability has really exploded in recent years.
Sophisticated systems for the reconstruction of the most prominent of these distributions, "Wigner function 'from experimental data have established quantum phase space analysis on a firm basis. Nevertheless, since studies quantum trajectory can not be done , some of the energy of established classical methods lack.
Researchers have been studying Wigner flow, based on the dynamic function of the Wigner, and have shown that reveals new and surprising characteristics of the quantum dynamic phase space. It is, for example, the vortices that rotate the "wrong" way around and listed in the "wrong" part of the phase space, when viewed from the point of view of classical physics. Therefore, these dynamic patterns are manifestations of the quantum nature of the system.

In addition to these new riches that the team has shown the existence of a conservation law that reveals a new type of topological order in quantum dynamics. As an application have shown that the flow of Wigner sheds new light on quantum tunneling, the fundamental process governing the operation of electronic circuits, computer and decay of radionuclides.