Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Zhang Qi-Ren"'
Autor:
Zhang, Qi-Ren
Publikováno v:
Chin. Phys. B . 2018, 27(12): 120306
A sharply peaked structure is found in the angular distribution of emitted $\pi^+$ mesons from the photon-proton collisions. It offers a possible way for generating a $\pi^+$-condensation in free space. To make the stimulated emission of $\pi^+$-meso
Externí odkaz:
http://arxiv.org/abs/1804.05666
Autor:
Zhang, Qi-Ren
Publikováno v:
Chin. Phys. B24 (2015) 054208
The possibility of $\gamma-$ray laser generation by the radiation of wiggling electrons in an usual background laser is discussed.
Comment: 9 pages,3 figures
Comment: 9 pages,3 figures
Externí odkaz:
http://arxiv.org/abs/1408.3112
Autor:
Zhang, Qi-Ren
Publikováno v:
Chin. Phys. B Vol. 23, No. 1 (2014) 010306
Quantum electrodynamics in a laser is formulated, in which the electron-laser interaction is exactly considered, while the interaction of an electron and a single photon is considered by perturbation. The formulation is applied to the electron-laser
Externí odkaz:
http://arxiv.org/abs/1303.7229
Autor:
Zhang, Qi-Ren
By relativity we show that, although the superluminal motion of classical particles is forbidden, the superluminal transportation of quanta of any massive matter field is possible. Exact theoretical derivation and precise numerical computation are pr
Externí odkaz:
http://arxiv.org/abs/1202.6190
Autor:
Zhang, Qi-Ren, Gao, Chun-Yuan
We propose a quantization procedure for the nucleon-scalar meson system, in which an arbitrary mean scalar meson field $\phi$ is introduced. The equivalence of this procedure with the usual ones is proven for any given value of $\phi$. By use of this
Externí odkaz:
http://arxiv.org/abs/1003.0235
Autor:
Zhang, Qi-Ren
Publikováno v:
Physica A 388 (2009) 4041-4044
We consider the statistical irreversibility and its compatibility with the reversible dynamics. The role played by the observation is analyzed in detail. It makes our previous proof for the second law of thermodynamics clearer. On this basis, we emph
Externí odkaz:
http://arxiv.org/abs/0902.0870
Autor:
Zhang, Qi-Ren
Publikováno v:
Int. J. Mod. Phys. E17(2008) 1075-1082
We show that the principle of entropy increase may be exactly founded on a few axioms valid not only for quantum and classical statistics, but also for a wide range of statistical processes.
Comment: 8 pages
Comment: 8 pages
Externí odkaz:
http://arxiv.org/abs/0706.3504
Autor:
Zhang, Qi-Ren
Publikováno v:
Int. J. Mod. Phys. E17(2008) 531-537
We show that the conservation and the non-additivity of the information, together with the additivity of the entropy make the entropy increase in an isolated system. The collapse of the entangled quantum state offers an example of the information non
Externí odkaz:
http://arxiv.org/abs/quant-ph/0610005
Autor:
Zhang, Qi-Ren
We show that if the laser is intense enough, it may always ionize an atom or induce transitions between discrete energy levels of the atom, no matter what is its frequency. It means in the quantum transition of an atom interacting with an intense las
Externí odkaz:
http://arxiv.org/abs/quant-ph/0608048
Autor:
Zhang, Qi-Ren
Publikováno v:
Commun. Theor. Phys.47(2007) 826-828
We show that the non-locality together with the statistical character makes the world statistically separable. The super-luminal signal transmission is impossible. The quantum theory is therefore consistent with the relativity and the causality.
Externí odkaz:
http://arxiv.org/abs/quant-ph/0512150