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Search Results: 1 - 10 of 5928 matches for " Quantum Physics "
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Black Body Quantum Fluctuations and Relativity  [PDF]
Sebastiano Tosto
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.713152
Abstract: The paper introduces a simple theoretical model aimed to provide a possible derivation of the quantum fluctuations of the black body radiation. The model offers the chance of inferring and linking contextually quantum and relativistic results.
Physics in Discrete Spaces: On Quantum Theory  [PDF]
Pierre Peretto
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.514138
Abstract:

In this article we show that quantum physics is a straightforward and comprehensive consequence of the model of discrete space-time that we have put forward in [1]. We first introduce the concept of coherent domains and give a proof of the various postulates and principles that form the basis of one-particle quantum systems. Then we consider how spin-statistic theorem and the formalism of second quantization, that are prerequisites for a description of many-particles systems, emerge from the model. Finally the same framework suggests the idea of rigid histories which allows an interpretation of quantum entanglement to be proposed.

Geometry of the Standard Model of Quantum Physics  [PDF]
Claude Daviau, Jacques Bertrand
Journal of Applied Mathematics and Physics (JAMP) , 2015, DOI: 10.4236/jamp.2015.31007
Abstract:

General relativity links gravitation to the structure of our space-time. Nowadays physics knows four types of interactions: Gravitation, electromagnetism, weak interactions, strong interactions. The theory of everything (ToE) is the unification of these four domains. We study several necessary cornerstones for such a theory: geometry and mathematics, adapted manifolds on the real domain, Clifford algebras over tangent spaces of these manifolds, the real Lagrangian density in connection with the standard model of quantum physics. The geometry of the standard model of quantum physics uses three Clifford algebras. The algebra \"\"?of the 3-dimensional physical space is sufficient to describe the wave of the electron. The algebra \"\"of space-time is sufficient to describe the wave of the pair electron-neutrino. A greater space-time with two additional dimensions of space generates the algebra \"\" . It is sufficient to get the wave equation for all fermions, electron, its neutrino and quarks u and d of the first generation, and the wave equations for the two other generations. Values of these waves allow defining, in each point of space-time, geometric transformations from one intrinsic manifold of space-time into the usual manifold. The Lagrangian density is the scalar part of the wave equation.

New Basic Theory of Gravity  [PDF]
Hubert J. Veringa
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.713162
Abstract: Although Newton’s law of gravity already exists for centuries, and its validity is beyond any doubt, we are still lacking a basic theory to explain the specific features of this law. The general belief is that any suitable theory should include, or will be a merger of, classical quantum theory and general relativity, but until now no acceptable mathematical model taking both aspects into account has proposed. The present letter is written to present a new scheme of analysis for the mutual interaction between particles that have some exchange with respect to time and space. It is found that the right form of Newton’s gravity law emerges by consequently working through the existing schemes of both quantum mechanics and the basic equations of relativity theory as expressed by the Dirac equation.
Part II of New Basic Theory of Gravity*  [PDF]
Hubert J. Veringa
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.716195
Abstract: This paper follows the earlier paper Part I: Veringa, H. J. (September 2016), New Basic Theory of Gravity, Journal of Modern Physics 7 (1818-1828) in which a new model to describe the gravitational interaction between particles and its consequences on the attractive force between two masses is proposed. The basis for the analysis is a merger of Quantum theory and Relativity. Nowhere in the analysis, there is any need to deviate from well proven and successful concepts of both theories and rules of calculation, and no exotic new particles will have to be introduced. By doing so, it is demonstrated that, next to its local interactions of a multi-particle system, the Schrödinger equation leads to pairs of two and only two members. This solution is used as the invariant term in the quantized Dirac equation which gives gravitational interactions between members of the pairs. With this particular solution for the quantum-mechanical wave function, it is found that gravity is a second order effect operating over a long range. The emphasis of this paper is on the more precise justification of some of the basic assumptions made, on the historical context into which it should be placed, how it affects the ordering of our immediate environment and works on a cosmological scale. It is also found that the generator of gravity is contributing mass to particles that have gravitational interaction. This contribution is therefore related to cosmological parameters and will be further elucidated.
Quantum Cosmology Explains the General Galaxy-Black Hole Correlation  [PDF]
Paul K. Suh
International Journal of Astronomy and Astrophysics (IJAA) , 2012, DOI: 10.4236/ijaa.2012.22014
Abstract: The symmetric quantum physics of the Universe demonstrates that the massive black holes developing in the post-inflation big-bang prompt the formation of the host galaxies around them. A general correlation between the variety of galaxies and black holes develops, a specific example of which is the celebrated (but not understood) mass correlation between the host elliptical galaxies and their core black holes. The elucidations and predictions in this exposition are inclusive and far-reaching, resolving a myriad of yet unsolved problems and quandaries in the evolving Universe, among which are: how the general galaxy-black hole correlations are established; what is the role of the dark matter and energy in the formation of galaxies and stars; how the spiral galaxies with less predominant black holes are formed; how the early star forming globular cluster emerged with sparse dark matter; why some galaxy mergers give rise to the starbursts, while other mergers switch the star flourishing galaxies off into grave yards; and how could the Universe have wound up as sheets and filaments of galaxy clusters encompassing great voids.
Reinventing Quantum Physics  [PDF]
Jean-Paul Auffray, Mohamed S. El Naschie
Journal of Modern Physics (JMP) , 2016, DOI: 10.4236/jmp.2016.71017
Abstract: Quantum Physics (QP) was invented in the early years of the Twentieth century by physicists born and educated in the western world. We examine the possibility that this is the main reason—or at least one of the main reasons—which caused QP to go astray from the start. We present the ABC for a renovated Quantum Physics.
RF Field-Driven Electron Tunneling through Mesoscale Junctions  [PDF]
Masroor H. S. Bukhari
Journal of Modern Physics (JMP) , 2017, DOI: 10.4236/jmp.2017.812117
Abstract: Preliminary results of a study are reported here investigating mesoscopic tunnel junctions irradiated with coherent low-intensity (-50 to -10 dB) pulsed microwave RF fields at moderately low (LN2) temperatures. Quantum tunneling of electrons was observed through fabricated mesoscale gap junctions as a result of coherent irradiating fields at low temperatures around 77 - 100 K. The tunneling current was seen as a result of applied microwave fields across the junctions, distinguishable from shot noise and resistance effects. The form of tunneling behavior does not lead to any conductance quantization effects which could manifest the junction as a Quantum Point Contact (QPC), hence it is surmised that the phenomenon is purely low intensity RF field-induced tunneling of electrons across the mesoscale junctions at low temperatures.
Student Understanding of Some Quantum Physical Concepts
Serap ?al??kan,Gamze Sezgin Sel?uk
Latin-American Journal of Physics Education , 2009,
Abstract: In spite of nearly a century, quantum physics and quantum phenomena seem to be having some difficulties toinfluence the human brain and logic hence some considerable effort has recently been spending to overcome suchdifficulties. As a part of the international efforts, we composed a questionnaire named as Quantum ConceptsQuestionnaire (QCQ) to investigate student ideas about some concepts in quantum physics and quantum phenomena.In this work, the concepts of electron, wave function, wave-particle duality and structure of atom are specificallyinvestigated and obtained data are statistically analysed. The QCQ is administered to 71 undergraduate students allcompleted the quantum physics course at Education Faculty of Buca, Dokuz Eylül University in Izmir, Turkey. Finallysome important outcomes of the research are presented, discussed and certain suggestions are briefly made.
On Some Novel Ideas in Hadron Physics. Part II
Smarandache F.,Christianto V.
Progress in Physics , 2010,
Abstract: As a continuation of the preceding section, we shortly review a series of novel ideas on the physics of hadrons. In the present paper, emphasis is given on some different approaches to the hadron physics, which may be called as "programs" in the sense of Lakatos. For clarity, we only discuss geometrization program, symmetries/unification program, and phenomenology of inter-quark potential program.
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