Showing that operators follow SU(2) algebra

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SUMMARY

The discussion focuses on verifying the commutation relations of operators in the context of SU(2) algebra for two quantum oscillators. The operators in question are the raising operator (T_+), lowering operator (T_-), and the number operator (N=H). The user seeks to express T_1 and T_2 in terms of T_- and T_+ to confirm adherence to the SU(2) commutation relation [T_1, T_2] = i ε^ijk T_3. The transformation to the Pauli matrices is also referenced for clarity.

PREREQUISITES
  • Understanding of quantum mechanics, specifically quantum oscillators
  • Familiarity with SU(2) algebra and its commutation relations
  • Knowledge of operator notation and transformations in quantum physics
  • Basic understanding of Pauli matrices and their role in quantum mechanics
NEXT STEPS
  • Research the derivation of SU(2) commutation relations in quantum mechanics
  • Study the relationship between raising/lowering operators and angular momentum
  • Explore the mathematical framework of Lie algebras, particularly \mathfrak{su}(2)
  • Examine the application of Pauli matrices in quantum state transformations
USEFUL FOR

This discussion is beneficial for quantum physicists, graduate students in physics, and anyone studying the mathematical foundations of quantum mechanics and SU(2) algebra.

graviton_10
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For two quantum oscillators, I have raising and lowering operators
gif.gif
and
gif.gif
, and the number operator
gif.gif
. I need to check if operators below follow
gif.gif
commutation relations.

gif.gif


gif.gif


Now as far as I know, SU(2) algebra commutation relation is [T_1, T_2] = i ε^ijk T_3. So, should I just get T_1 and T_2 in terms of T_- and T_+ and then try to check if I get they follow the SU(2) commutation relation?
 
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Just a pedantic comment but ##SU(2)## is a group, and ##\mathfrak{su}(2)## is an algebra.
 
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