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Results tagged with quantum-mechanics
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user 350180
Quantum mechanics describes the microscopic properties of nature in a regime where classical mechanics no longer applies. It explains phenomena such as the wave-particle duality, quantization of energy, and the uncertainty principle and is generally used in single-body systems. Use the quantum-field-theory tag for the theory of many-body quantum-mechanical systems.
4
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Why doesn't the Pauli exclusion principle apply to bosons?
The Pauli Exclusion principle talks about the entire state, that is, it's impossible for Fermions to occupy the same quantum state at the same time. It is indeed a direct consequence of the Spin-Stati …
- 409
1
vote
Are the probability amplitudes in the continuous case, always the coefficients of the eigens...
In general, the basis of eigenvectors of a Hermitian operator is always complete. Because the Hamiltonians are Hermitian, the set of energy eigenstates will always form a complete basis, and therefore …
- 409
4
votes
2
answers
565
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Conceptual question about Euler-Lagrange equations in Quantum Field Theory
So I've started going down the QFT rabbit hole aided by Schwartz's book "Quantum Field Theory and the Standard Model". On chapter 7, the first method used to find the position-space Feynman Rules, is …
- 213k