Condensed Matter

2401 Submissions

[6] viXra:2401.0145 [pdf] submitted on 2024-01-30 22:17:33

Bose-Einstein Condensation of Light in Photonic Crystals

Authors: A. A. Dashchinskii, D. A. Korets, V. V. Filatov
Comments: 5 Pages. Reported at XII International Conference on Photonics and Nonlinear Optics (2023, Feb. 1-3, Moscow, Russia)

Bose-Einstein condensate (BEC) of light is a non-classical (quantal) phase state of electromagnetic field when the light acts as a superfluid liquid. Theory predicts light can "liquefy" into BEC in a resonant optical microcavity. The paper reports an obtaining Bose-condensed light in the resonant microcavities of photonic crystals when crystals are irradiated by external optical sources matched to the photonic crystals’ bandgaps edges. This way there formed the near-surface high-energetic optical Tamm states corresponding to Bose-condensed light into the near-surface photonic crystal’s microcavities.
Category: Condensed Matter

[5] viXra:2401.0119 [pdf] submitted on 2024-01-24 00:26:48

Beyond Einstein: Non-local Physics

Authors: Brian Fraser
Comments: 187 Pages.

["Beyond Einstein: non-local physics" is about how temporal motion manifests itself in a spatial reference system. This type of physics is not taught in the schools and is not addressed in the journals. This is the 5th edition.] Beyond Einstein: non-local physics (2nd ed.) offered simple explanations for the nature and behavior of gravity, the stability of galaxies and globular clusters, Dark Matter, the EPR paradox, the Twin Paradox, the constancy of the speed of light, the concept of non-directional motion, the negative result of the Michelson—Morley experiment, the wave-particle duality, observational effects of accelerated reference systems, etc.—all on the general theme of non-local physics. The 3rd edition includes the 2nd edition and adds much new material, including the properties of the Ether, globular cluster, star, and planet formation, comments on galactic time limits from the Bible. The 4th edition includes the topics of exploding galaxies, non-local astronomy, reference system inversion effects, GRBs, induced radioactivity, supernova, important quantization effects, quasars, and redshifts. The 5th edition adds a section on perpendicular reaction forces, rotational effects on inertia, electroaerodynamics, neutrinos and "cold electricity", some UFO links, derivation of space/time dimensions, a primer on Quantum Mechanics, insights on the geometry of space, time, and motion, and various additions/corrections. This document is NOT a formal article intended for a formal journal. It is intended as a physics educational, "pot stirring" outreach and offers credible alternatives to the conventional "received truth" of institutional physics and astronomy. A Table of Contents was added to help the reader navigate the document.
Category: Condensed Matter

[4] viXra:2401.0088 [pdf] submitted on 2024-01-20 01:10:56

Nature of Crystal Lattice

Authors: Henadzi Filipenka
Comments: 9 Pages. (Correction made by viXra Admin to conform with scholarly norm)

The literature generally describes a metallic bond as the one formed by means of mutual bonds between atoms' exterior electrons and not possessing the directional properties. However, attempts have been made to explain directional metallic bonds, as a specific crystal metallic lattice. This paper demonstrates that the metallic bond in the densest packings (volume-centered and face-centered) between the centrally elected atom and its neighbours in general is, probably, effected by 9 (nine) directional bonds, as opposed to the number of neighbours which equals 12 (twelve) (coordination number). Probably, 3 (three) "foreign" atoms are present in the coordination number 12 stereometrically, and not for the reason of bond. This problem is to be solved experimentally.
Category: Condensed Matter

[3] viXra:2401.0029 [pdf] submitted on 2024-01-06 22:16:38

FinFET Chronicles: Navigating the Silicon Horizon in the Era of Nanoarchitecture

Authors: Islam Ibrahim, Ahmed Walid, Mohamed Atallah, Omar Mohamed, Ahmed Mahmoud
Comments: 8 Pages.

This paper investigates FinFET transistor technology, aiming to address limitations in conventional planar CMOS transistors. The motivation stems from the escalating demandfor high-performance, low-power devices in sub-10nm technology nodes. The challenges of short-channel effects, leakage currents,and scalability constraints in planar CMOS transistors have prompted exploration into novel architectures like FinFETs. This research provides an indepth analysis of FinFETs’ threedimensional structure, fabrication, materials, and design considerations. We evaluate their advantages and limitations compared to traditional transistors in terms of power consumption, speed, and scalability. Our approach involves comparative studiesutilizing simulations, material analysis, and empirical data. By merging theory with practical insights, this paper aims to offera comprehensive view of FinFET technology’s potential and challenges in modern semiconductor applications. In conclusion,this study sheds light on FinFET transistors, emphasizing their fabrication, design, and performance characteristics. It highlightstheir promise as a solution to semiconductor industry challenges, paving the way for next-generation electronic devices.
Category: Condensed Matter

[2] viXra:2401.0024 [pdf] submitted on 2024-01-05 21:57:10

Theory of High Temperature Superconductivity II

Authors: Hans Christian Haunschild
Comments: 57 Pages.

The theory presented here is able to explain all attributes of cuprate-based High-temperature-Superconductors in the normal- and in the SC-state as well. For the theoretical calculations parameters gained by experiments only are used. It will be shown that all experimental values connecting to HTSC can be predicted/ calculated by assistance of the equation: 1,14This equation is derived from the Hubbard-Model. MPG is the maximum pseudogap, received by extrapolating the pseudogap-values to zero. From that Fundamental-Formula one can get seven quantitative connections between superconduction-attributes and doping, all proved by experiment. Additionally two well-hidden faults in BCS- and McMillan-theories will be shown. Without deleting these mistakes no theory of High-Tc-Superconductivity can be successful. More than 300 experimentally measured values will be compared with the predictions of theory. In more than 90% there is quantitative, otherwise qualitative accordance between experiment and theory. Reluctance is senseless: This theory will succeed.
Category: Condensed Matter

[1] viXra:2401.0016 [pdf] submitted on 2024-01-03 01:27:38

Electron Viscosity and Electromagnetic Radiation for the Dynamic Deformations of Metals

Authors: Yuanjie Huang
Comments: 36 Pages.

The electron viscosity is popular in the dynamic deformations of metals, and it was revealed to dominate the related energy dissipation at low temperatures. The free electron model was extensively utilized to investigate the electron viscosity of the related phenomena including electron viscosity of mobile dislocations and the attenuation coefficient of elastic waves at low temperatures. However, the potential energy of the "free" electrons was neglected totally. In this work, the mechanical-electric coupling which contains both the potential energy and kinetic energy of "free" electrons was taken into account. And it was found that the attenuation coefficients of the longitudinal and shear waves of metals at cryogenic temperatures are proportional to the electrical conductivity and the square of angular frequency, which was in accord with experimental observations. The longitudinal and shear waves in a metal was found to induce the electromagnetic radiation whose frequency is the same as the stress wave. In addition, the electron viscosity was discovered to result in a temperature increase over the compression wave front. The temperature increase depends on the strain gradient, and a larger strain gradient may lead to a larger temperature rise during the compression wave front. Furthermore, the electron viscosity of the mobile edge and screw dislocations was obtained in theory. And the order of calculated magnitude in terms of the mechanical-electric coupling strength that can be determined by the attenuation coefficient of the longitudinal and shear wave agrees with experimental results. Overall, the revealed important effects of the electron viscosity for the dynamic deformations of metals were investigated and the obtained findings may aid in understanding the related phenomena deeply.
Category: Condensed Matter