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The Quantum Condition That Should Have Been Assumed by Bohr When Deriving the Energy Levels of a Hydrogen Atom 被引量:2
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作者 Koshun Suto 《Journal of Applied Mathematics and Physics》 2021年第6期1230-1244,共15页
Bohr assumed a quantum condition when deriving the energy levels of a hydrogen atom. This famous quantum condition was not derived logically, but it beautifully explained the energy levels of the hydrogen atom. Theref... Bohr assumed a quantum condition when deriving the energy levels of a hydrogen atom. This famous quantum condition was not derived logically, but it beautifully explained the energy levels of the hydrogen atom. Therefore, Bohr’s quantum condition was accepted by physicists. However, the energy levels predicted by the eventually completed quantum mechanics do not match perfectly with the predictions of Bohr. For this reason, it cannot be said that Bohr’s quantum condition is a perfectly correct assumption. Since the mass of an electron which moves inside a hydrogen atom varies, Bohr’s quantum condition must be revised. However, the newly derived relativistic quantum condition is too complex to be assumed at the beginning. The velocity of an electron in a hydrogen atom is known as the Bohr velocity. This velocity can be derived from the formula for energy levels derived by Bohr. The velocity <em>v </em>of an electron including the principal quantum number <em>n</em> is given by <em>αc</em>/<em>n</em>. This paper elucidates the fact that this formula is built into Bohr’s quantum condition. It is also concluded in this paper that it is precisely this velocity formula that is the quantum condition that should have been assumed in the first place by Bohr. From Bohr’s quantum condition, it is impossible to derive the relativistic energy levels of a hydrogen atom, but they can be derived from the new quantum condition. This paper proposes raising the status of the previously-known Bohr velocity formula. 展开更多
关键词 Relativistic Energy Levels of the Hydrogen Atom Bohr’s quantum condition Bohr Velocity Einstein’s Energy-Momentum Relationship Suto’s Energy-Momentum Relationship Relativistic Kinetic Energy
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Previously Unknown Formulas for the Relativistic Kinetic Energy of an Electron in a Hydrogen Atom
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作者 Koshun Suto 《Journal of Applied Mathematics and Physics》 2023年第4期972-987,共16页
Einstein’s energy-momentum relationship, which holds in an isolated system in free space, contains two formulas for relativistic kinetic energy. Einstein’s relationship is not applicable in a hydrogen atom, where po... Einstein’s energy-momentum relationship, which holds in an isolated system in free space, contains two formulas for relativistic kinetic energy. Einstein’s relationship is not applicable in a hydrogen atom, where potential energy is present. However, a relationship similar to that can be derived. That derived relationship also contains two formulas, for the relativistic kinetic energy of an electron in a hydrogen atom. Furthermore, it is possible to derive a third formula for the relativistic kinetic energy of an electron from that relationship. Next, the paper looks at the fact that the electron has a wave nature. Five more formulas can be derived based on considerations relating to the phase velocity and group velocity of the electron. This paper presents eight formulas for the relativistic kinetic energy of an electron in a hydrogen atom. 展开更多
关键词 Einstein’s Energy-Momentum Relationship Relativistic Kinetic Energy Bohr’s quantum condition Potential Energy Phase Velocity Group Velocity
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Electron Mass in an Atom Is Less than Rest Mass
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作者 Koshun Suto 《Journal of Applied Mathematics and Physics》 2023年第12期3953-3961,共9页
Einstein’s energy-momentum relationship is a formula that typifies the special theory of relativity (STR). According to the STR, when the velocity of a moving body increases, so does the mass of the body. The STR ass... Einstein’s energy-momentum relationship is a formula that typifies the special theory of relativity (STR). According to the STR, when the velocity of a moving body increases, so does the mass of the body. The STR asserts that the mass of a body depends of the velocity at which the body moves. However, when energy is imparted to a body, this relation holds because kinetic energy increases. When the motion of an electron in an atom is discussed at the level of classical quantum theory, the kinetic energy of the electron is increased due to the emission of energy. At this time, the relativistic energy of the electron decreases, and the mass of the electron also decreases. The STR is not applicable to an electron in an atom. This paper derives an energy-momentum relationship applicable to an electron in an atom. The formula which determines the mass of an electron in an atom is also derived by using that relationship. 展开更多
关键词 Einstein’s Energy-Momentum Relationship Relativistic Energy Electron Mass Bohr’s quantum condition Potential Energy
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硅量子点荧光探针检测8-羟基喹啉的研究 被引量:1
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作者 卓含含 彭勇刚 +1 位作者 汪媛 陶永新 《化学研究与应用》 CAS 北大核心 2023年第6期1322-1329,共8页
量子点荧光探针已广泛用于酚类化合物的检测,但用于具有特殊结构的酚类化合物8-羟基喹啉(8-HQ)检测的相关研究报道很少。本文以硅烷偶联剂KH550和抗坏血酸为原料,通过一步水热法制备了蓝光硅量子点(B-SiQDs)。研究发现,8-HQ对B-SiQDs有... 量子点荧光探针已广泛用于酚类化合物的检测,但用于具有特殊结构的酚类化合物8-羟基喹啉(8-HQ)检测的相关研究报道很少。本文以硅烷偶联剂KH550和抗坏血酸为原料,通过一步水热法制备了蓝光硅量子点(B-SiQDs)。研究发现,8-HQ对B-SiQDs有显著荧光猝灭效应;在最佳实验条件下,8-HQ浓度在0.01~0.4 mmol·L^(-1)范围内与B-SiQDs荧光猝灭率呈良好线性关系,检测限0.12μmol·L^(-1)。将该方法用于护发素样品中8-HQ的检测,加标回收率在96%~107%范围内,相对标准偏差(RSD)低于1%,结果令人满意。 展开更多
关键词 硅量子点 荧光猝灭 8-羟基喹啉 护发素
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Rotating Squeezed Vacua as Time Machines
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作者 S. Al Saleh L. A. Al Asfar A. Mahroussah 《Journal of Modern Physics》 2016年第3期304-311,共8页
Squeezed quantum vacua seems to violate the averaged null energy conditions (ANEC’s), because they have a negative energy density. When treated as a perfect fluid, rapidly rotating Casimir plates will create vorticit... Squeezed quantum vacua seems to violate the averaged null energy conditions (ANEC’s), because they have a negative energy density. When treated as a perfect fluid, rapidly rotating Casimir plates will create vorticity in the vacuum bounded by them. The geometry resulting from an arbitrarily extended Casimir plates along their axis of rotation is similar to van Stockum spacetime. We observe closed timelike curves (CTC’s) forming in the exterior of the system resulting from frame dragging. The exterior geometry of this system is similar to Kerr geometry, but because of violation of ANEC, the Cauchy horizon lies outside the system unlike Kerr blackholes, giving more emphasis on whether spacetime is multiply connected at the microscopic level. 展开更多
关键词 Squeezed quantum vacua seems to violate the averaged null energy conditions (ANEC’s) because they have a negative energy density. When treated as a perfect fluid rapidly rotating Casimir plates will create vorticity in the vacuum bounded by them. The geometry resulting from an arbitrarily extended Casimir plates along their axis of rotation is similar to van Stockum spacetime. We observe closed timelike curves (CTC’s) forming in the exterior of the system resulting from frame dragging. The exterior geometry of this system is similar to Kerr geometry but because of violation of ANEC the Cauchy horizon lies outside the system unlike Kerr blackholes giving more emphasis on whether spacetime is multiply connected at the microscopic level.
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Spontaneous decoherence of coupled harmonic oscillators confined in a ring 被引量:1
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作者 ZhiRui Gong ZhenWei Zhang +2 位作者 DaZhi Xu Nan Zhao ChangPu Sun 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS CSCD 2018年第4期17-29,共13页
We study the spontaneous decoherence of coupled harmonic oscillators confined in a ring container, where the nearest-neighbor harmonic potentials are taken into consideration. Without any external symmetry-breaking fi... We study the spontaneous decoherence of coupled harmonic oscillators confined in a ring container, where the nearest-neighbor harmonic potentials are taken into consideration. Without any external symmetry-breaking field or surrounding environment, the quantum superposition state prepared in the relative degrees of freedom gradually loses its quantum coherence spontaneously.This spontaneous decoherence is interpreted by the gauge couplings between the center-of-mass and the relative degrees of freedoms, which actually originate from the symmetries of the ring geometry and the corresponding nontrivial boundary conditions.In particular, such spontaneous decoherence does not occur at all at the thermodynamic limit because the nontrivial boundary conditions become the trivial Born-von Karman boundary conditions when the perimeter of the ring container tends to infinity.Our investigation shows that a thermal macroscopic object with certain symmetries has a chance for its quantum properties to degrade even without applying an external symmetry-breaking field or surrounding environment. 展开更多
关键词 spontaneous quantum decoherence periodic boundary condition gauge interaction
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