Scientific American关于电子自旋的文章
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Scientific American关于电子自旋的文章
https://www.scientificamerican.com/arti ... come-from/
一个新观点认为自旋真的存在某种Quantum Field的涡旋
And it’s these fields, according to Sebens, that may contain the solution to the puzzle of spin. “The electron is ordinarily thought of as a particle,” he says. “But in quantum field theory, for every particle, there’s a way of thinking about it as a field.” In particular, the electron can be thought of as an excitation in a quantum field known as the Dirac field, and this field may be what carries the spin of the electron. “There’s a real rotation of energy and charge in the Dirac field,” Sebens says. If this is where the angular momentum resides, the problem of an electron spinning faster than the speed of light vanishes; the region of the field carrying an electron’s spin is far larger than the purportedly pointlike electron itself. So according to Sebens, in a way, Pauli and Lorentz were half-right: there isn’t a spinning particle. There’s a spinning field, and that field is what gives rise to particles.
一个新观点认为自旋真的存在某种Quantum Field的涡旋
And it’s these fields, according to Sebens, that may contain the solution to the puzzle of spin. “The electron is ordinarily thought of as a particle,” he says. “But in quantum field theory, for every particle, there’s a way of thinking about it as a field.” In particular, the electron can be thought of as an excitation in a quantum field known as the Dirac field, and this field may be what carries the spin of the electron. “There’s a real rotation of energy and charge in the Dirac field,” Sebens says. If this is where the angular momentum resides, the problem of an electron spinning faster than the speed of light vanishes; the region of the field carrying an electron’s spin is far larger than the purportedly pointlike electron itself. So according to Sebens, in a way, Pauli and Lorentz were half-right: there isn’t a spinning particle. There’s a spinning field, and that field is what gives rise to particles.
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Re: Scientific American关于电子自旋的文章
对。电子肯定不是点粒子。自旋也是真的有角动量。这也说明一定有一种结构在旋转。Caravel 写了: ↑11月 29, 2022, 6:27 pm https://www.scientificamerican.com/arti ... come-from/
一个新观点认为自旋真的存在某种Quantum Field的涡旋
And it’s these fields, according to Sebens, that may contain the solution to the puzzle of spin. “The electron is ordinarily thought of as a particle,” he says. “But in quantum field theory, for every particle, there’s a way of thinking about it as a field.” In particular, the electron can be thought of as an excitation in a quantum field known as the Dirac field, and this field may be what carries the spin of the electron. “There’s a real rotation of energy and charge in the Dirac field,” Sebens says. If this is where the angular momentum resides, the problem of an electron spinning faster than the speed of light vanishes; the region of the field carrying an electron’s spin is far larger than the purportedly pointlike electron itself. So according to Sebens, in a way, Pauli and Lorentz were half-right: there isn’t a spinning particle. There’s a spinning field, and that field is what gives rise to particles.
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Re: Scientific American关于电子自旋的文章
“其实七比一也还是有一些女生嘛。而且,还有不少是漂亮的。我听说王大平送过自己吹制的手工玻璃风铃到女生楼。就是一些薄壁玻璃球,红的蓝的,高高低低随意地悬垂在一个圆木片下面,球上装饰着类似水波纹的物理课本上的“李萨如图形”。然而,从女生得到的反馈是“最恨大物实验”(全校必修的大学物理实验课,牛脚洼大学饱受诟病的特色),我们听到传闻都笑得不行,钢铁直男啊。果然,快两年下来,他还是一无所获。”
建议TheMatrix再读一遍。里面各处意象都有所指,不是乱写的。
https://blog.sciencenet.cn/blog-3460796-1262571.html
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Re: Scientific American关于电子自旋的文章
D. Hestenes用real geometric algebra改写了狄拉克方程,去掉了复数。从他得到的结果,他认为自旋是确实有something 在一个类似空间的东西里旋转。这是我学习geometric algebra的起因,想看看到底怎么回事。
viewtopic.php?t=35874&start=40#p372951
没有光子;也没有量子能级,量子跃迁,量子叠加,量子塌缩和量子纠缠。
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Re: Scientific American关于电子自旋的文章
Hestenes这个人看上去很厉害,怎么就呆在ASUverdelite 写了: ↑11月 29, 2022, 10:33 pm D. Hestenes用real geometric algebra改写了狄拉克方程,去掉了复数。从他得到的结果,他认为自旋是确实有something 在一个类似空间的东西里旋转。这是我学习geometric algebra的起因,想看看到底怎么回事。
viewtopic.php?t=35874&start=40#p372951
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Re: Scientific American关于电子自旋的文章
没有光子;也没有量子能级,量子跃迁,量子叠加,量子塌缩和量子纠缠。
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Re: Scientific American关于电子自旋的文章
这样的人有一千个、一万个。你也不知道哪个(比如50年后)导致新突破,所以不能都去普林斯顿。
其实我的努力方向也是当这样一个人。
没有光子;也没有量子能级,量子跃迁,量子叠加,量子塌缩和量子纠缠。
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Re: Scientific American关于电子自旋的文章
他的工作我觉得只有教学意义,没有新的物理意义。那个内部空间就是希尔伯特空间的一个子空间而已。verdelite 写了: ↑11月 29, 2022, 10:33 pm D. Hestenes用real geometric algebra改写了狄拉克方程,去掉了复数。从他得到的结果,他认为自旋是确实有something 在一个类似空间的东西里旋转。这是我学习geometric algebra的起因,想看看到底怎么回事。
viewtopic.php?t=35874&start=40#p372951
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Re: Scientific American关于电子自旋的文章
他说Peter woit是lecturer. 你说D. Hestenes是ASU tenured。
没有光子;也没有量子能级,量子跃迁,量子叠加,量子塌缩和量子纠缠。