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Kruger
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In sense of the Dirac hole theory the space must have a charge that is infiniti positive. Why do then electric neutral atoms exist?
Kruger said:In sense of the Dirac hole theory the space must have a charge that is infiniti positive. Why do then electric neutral atoms exist?
wangyi said:But the Dirac theory has been out of date, replaced by QFT. In QFT, the space is not full of positron, and your question is solved.
marlon said:That is incorrect. Dirac theory is essential in QM and relativistic QM. QFT is the unification of both QM and special relativity so the things you say can't be true by simple definition.
I also don't understand what the original poster is talking about. Please, elaborate on your conceptual problem
marlon
Positron theory is a scientific concept that explains how electric neutral atoms are formed. According to this theory, atoms are made up of positively charged protons, negatively charged electrons, and a neutral particle called a positron. The positron is responsible for keeping the protons and electrons in balance, making the atom electrically neutral.
Positron theory differs from other theories of atomic structure, such as the Bohr model, in that it includes the existence of the positron. The Bohr model only considers the presence of protons and electrons in an atom, while positron theory takes into account the role of the positron in maintaining electrical neutrality.
The existence of positrons in atoms has been confirmed through various experiments, such as the emission of gamma rays from positron-electron annihilation and the observation of positronium, a short-lived atom consisting of an electron and positron bound together. Additionally, positrons have been detected in particle accelerators and in natural sources such as cosmic rays.
Yes, positron theory has practical applications in areas such as medical imaging and material science. Positron emission tomography (PET) scans, for example, use positrons to image the body and diagnose various diseases. In material science, positron annihilation spectroscopy is used to study the structure and defects in materials at the atomic level.
Like any scientific theory, positron theory has its limitations. It does not fully explain the behavior of atoms at the quantum level and is still being studied and refined by scientists. Additionally, positrons have not yet been observed in all elements of the periodic table, leading some to question the universality of positron theory in explaining all electric neutral atoms.