Zobrazeno 1 - 10
of 468
pro vyhledávání: '"WANG Huai-yu"'
We introduce a visual analysis method for multiple causal graphs with different outcome variables, namely, multi-outcome causal graphs. Multi-outcome causal graphs are important in healthcare for understanding multimorbidity and comorbidity. To suppo
Externí odkaz:
http://arxiv.org/abs/2408.02679
Autor:
Wang, Huai-Yu
Publikováno v:
PHYSICS ESSAYS 36(4) (2023) 385-398
The author's opinion is that the negative energy solutions of the Dirac equation mean that a particle can be of negative kinetic energy (NKE) besides positive kinetic energy (PKE). We think that NKE particles are dark ones and NKE matter is dark matt
Externí odkaz:
http://arxiv.org/abs/2402.13263
Autor:
Wang, Huai-Yu
Publikováno v:
Physics Essays, 36(2) 198-211 (2023)
In the author's previous works, it is derived from the Dirac equation that particles can have negative kinetic energy (NKE) solutions, and they should be treated on an equal footing as the positive kinetic energy (PKE) solutions. More than one NKE pa
Externí odkaz:
http://arxiv.org/abs/2307.11097
Autor:
Wang, Huai-Yu
Publikováno v:
Physics Essays, 36(2) 149-159 (2023)
In this paper, a theory of dark energy is proposed that matches dark matter. The relativistic quantum mechanics equations reveal that free particles can have negative energies. We think that the negative energy is the dark energy which behaviors as d
Externí odkaz:
http://arxiv.org/abs/2307.04824
Autor:
Wang, Huai-Yu
Publikováno v:
Physics Essays, 36(2) 140-148 (2023)
According to relativistic quantum mechanics, particles can be of negative kinetic energies (NKE). The author asserts in his previous works that the NKE substances are dark matters. Some NKE particles, say a pair of NKE electrons, can constitute a sta
Externí odkaz:
http://arxiv.org/abs/2307.04823
Autor:
Wang, Huai-Yu
Publikováno v:
Iournal of Physics Communications 7. 075001 (2023)
In quantum mechanics textbooks, a single-particle scattering theory is introduced. In the present work, a generalized scattering theory is presented, which can be in principle applied to the scattering problems of arbitrary number of particle. In lab
Externí odkaz:
http://arxiv.org/abs/2307.01235
Autor:
Wang, Huai-Yu
Publikováno v:
Physics Essays, 36(1) 429-437 (2023)
Liouville equation is a fundamental one in statistical mechanics. It is rooted in ensemble theory. By ensemble theory, the variation of the system's microscopic state is indicated by the moving of the phase point, and the moving trajectory is believe
Externí odkaz:
http://arxiv.org/abs/2302.10225
Autor:
Wang, Huai-Yu
Publikováno v:
Physics Essays, 35(4) 380-391 (2022)
In mathematical physics, time-dependent Green's functions (GFs) are the solutions of differential equations of the first and second time derivatives. Habitually, the time-dependent GFs are Fourier transformed into the frequency space. Then, analytica
Externí odkaz:
http://arxiv.org/abs/2211.07646
Autor:
Wang, Huai-Yu
Publikováno v:
PHYSICS ESSAYS Vol. 35, No. 3, 270-275 (2022)
It was long believed that there is a zero-point energy in the form of h\omega/2 for massive particles, which is obtained from Schr\"odinger equation for the harmonic oscillator model. In this paper, it is shown, by the Dirac oscillator, that there is
Externí odkaz:
http://arxiv.org/abs/2209.03181
Autor:
Wang, Huai-Yu
Publikováno v:
Advanced Studies in Theoretical Physics, 16(3) 131-163 (2022)
In evaluating differential cross section of elastic scattering, different theories were applied to low-momentum and relativistic particles. For low-momentum motion, Lippmann-Schwinger scattering equation was applied, called fundamental formula; while
Externí odkaz:
http://arxiv.org/abs/2209.06132