The Role of Size and Shape in the Stability of the Quantum Brownian Rotator

Abstract

Shape and size are the basic characteristics of macroscopic, classical systems, and as such represent a special challenge within the fundamental problem of "transition from quantum to classical", but also the problem of quantum measurement. Propeller analyzing the effects of size and shape because of the linear dependence of both the moment of inertia and the damping factor on the number of propeller blades. Also, such research application within molecular machines technology. The obtained results indicate a very complex dependence of dynamic stability on the size of the system, as well as some unexpected characteristics of the time evolution of standard deviations in some cases. The new method called "the quantum first passage time" also led to unexpected conclusions, just like the analysis of the role of decoherence in the transition from quantum to classical behavior.

Using Different Angles of Rotating Blades Using the Finite Element Method

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“…3. Results of main chassis finite element analysis [27] In [28], the finite element analysis of a nine-branch cultivator machine is presented. A cultivator is an important agricultural machine used in land preparation.…”

“…The maximum and minimum main stresses were 5.1726 MPa and 0.20944 MPa, respectively, with a total change of 0.076953 mm. The maximum amount of stress did not exceed the yield point because deformation does not cause failure in the rake [28].…”