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The Concept of Time: A Grand Unified Reaction Platform

Journal of Modern Physics 2022年第2期13卷 206-224页

作者： hamidreza simchi Department of Physics Iran University of Science and Technology Narmak Tehran Iran

The universe is things which change and called events. The events are matter and field. A boundary divides a system to things and environment. The things which belong to the environment have no significant effect on the things which belong to the system. The physical observables are the variations of things and it is always assumed that the conscious thing is placed in environment because the science cannot explain consciousness. There is not only an obligated minimum boundary between things (space) but also between past and future (present). The gravitational field has significant effect on these obligated minimums, especially at Planck scale. By using the above concept we introduce a grand unified reaction platform for categorizing the current physical paradigms and possible future explanation of the universe as a whole.

关键词： Spacetime Planck Scale Gravity Universe Conscious

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Causality, Uncertainty Principle, and Quantum Spacetime Manifold in Planck Scale

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Journal of Modern Physics 2022年第2期13卷 166-178页

作者： hamidreza simchi Department of Physics Iran University of Science and Technology Narmak Tehran Iran Iran Semiconductor Technoloy Center Tehran Iran

In causal set theory, there are three ambiguous concepts that this article tries to provide a solution to resolve these ambiguities. These three ambiguities in Planck’s scale are: the causal relationship between events, the position of the uncertainty principle, and the kinematic. Assuming the interaction between events, a new definition of the causal relationship is presented. Using the principle of superposition, more than one world line is attributed to two events that are interacting with each other to cover the uncertainty principle. Using these achievements, it is shown that kinematics has no place in the Planck dimension and that quantum spacetime manifold should be used instead.

关键词： Causal Set Theory Causality Uncertainty Principle Kinematic Manifold

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The Magnetic Field Effects on Radially Symmetric Core-Shell-Shell Structure

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Optics and Photonics Journal 2011年第1期1卷 5-10页

作者： hamidreza simchi Mahdi Smaeilzadeh Mehdi H. Saani Semiconductor Component Industry Iran University of Science and Technology University

In this paper, we modeled a core/shell/shell structure with cylindrical Schrodinger-Poisson coupled equation when a magnetic field is (and is not) applied along its axis. We showed the electron density is peaked near the outer surface of the channel when the magnetic field is applied. Therefore one may make a nano-device which its electrons move only on its outer surface. Also we applied a gate voltage to the device and showed a higher threshold voltage (to turn on the device) is necessary when a magnetic field is applied. This is because of the increase in the lowest energy level similar to the size quantization. i.e a device with longer channel looks like a device with shorter channel if it is placed in a magnetic field parallel to its axis.

关键词： Naowire Core-Shell-Shell Structure Self-Consistent Calculation Quantum Capacitance

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