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Results tagged with quantum-mechanics
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user 50374
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.
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Showing Dirac equation's Lorentz invariance and use of unitary matrix $U$
Dirac equation is $i \hbar \gamma^\mu \partial_\mu \psi - m c \psi = 0 $
To show its Lorentz invariance, we convert spacetime into $x'$ and $t'$ from $x$ and $t$ and then
$( iU^\dagger \gamma^\mu U\ …
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How can we "know" that system interacted with another system or environment in quantum mecha...
I might be raising measurement problem in quantum physics in different words, but I will ask the question.
Quantum decoherence has been proposed by proponents as a theory that eliminates all weird is …
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