Possible values of total angular momentum of a 2 electron system

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SUMMARY

The total angular momentum values for a two-electron system can be determined using the total spin values of 1 and 0. The relationship between total angular momentum (j) and spin (s) is defined by the inequalities |l-s| ≤ j ≤ l+s and -j ≤ m_z ≤ j, where m_z represents the angular momentum in the z-direction. For S=1, the possible m values are 1, 0, and -1, while for S=0, the only m value is 0. This confirms the correct interpretation of the total angular momentum states.

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  • Understanding of quantum mechanics principles, specifically angular momentum.
  • Familiarity with the concept of spin in quantum systems.
  • Knowledge of the addition of angular momentum in quantum mechanics.
  • Basic grasp of the notation used in quantum mechanics, such as m_z and j.
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  • Study the addition of angular momentum in quantum mechanics.
  • Learn about the implications of total spin and its relation to quantum states.
  • Explore the mathematical derivation of angular momentum inequalities.
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Sekonda
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Hey,

Also a bit confused on this one, the question is displayed below

2elec.png


The possible total spin values are 1,0,-1 and I know that

[tex]\mid l-s\mid\leq j\leq l+s\: ,\: -j\leq m_{z}\leq j[/tex]

Where the latter inequality is in integer steps, so I'm not really sure if it is as simple as substituting in the 's' values into the first inequality and then using the maximum 'j' value in the second inequality.

Probably didn't make any sense.

Any help is appreciated!
SK
 
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Hmm actually is it that the total spin can be either 1 or 0, and the total angular momentum in the z-direction can be 1,0,-1.

So S=1 goes to m=1,0,-1 and S=0 goes to m=0?

Or is that wrong...

Cheers,
SK
 
Sekonda said:
Hmm actually is it that the total spin can be either 1 or 0, and the total angular momentum in the z-direction can be 1,0,-1.

So S=1 goes to m=1,0,-1 and S=0 goes to m=0?

Or is that wrong...

Cheers,
SK

This is the correct answer. Very good!
 

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