I Physics Today article collection

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Physics Today has curated a collection of quantum articles, available at their Quantum archive. The collection includes significant historical insights, such as the article on Rabi, which discusses the developments in quantum mechanics during the 1920s and the Pauli effect. Readers have expressed enjoyment in exploring these foundational topics in quantum physics. The archive serves as a valuable resource for those interested in the evolution of quantum theory. This collection highlights the importance of historical context in understanding modern physics.
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Thread 'Angular Momentum Vector and Its Magnitude'

For the quantum state ##|l,m\rangle= |2,0\rangle## the z-component of angular momentum is zero and ##|L^2|=6 \hbar^2##. According to uncertainty it is impossible to determine the values of ##L_x, L_y, L_z## simultaneously. However, we know that ##L_x## and ## L_y##, like ##L_z##, get the values ##(-2,-1,0,1,2) \hbar##. In other words, for the state ##|2,0\rangle## we have ##\vec{L}=(L_x, L_y,0)## with ##L_x## and ## L_y## one of the values ##(-2,-1,0,1,2) \hbar##. But none of these...
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