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# Quantum mechanics

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1. are two Hermitian operators. consider the state where is real and . By taking the inner products on both sides and minimizing with respect to derive the uncertainty relation:
where is the commutator of with and
I've been stuck on this question for a while and would appreciate any help. Thanks.
2. (Original post by JBKProductions)
are two Hermitian operators. consider the state where is real and . By taking the inner products on both sides and minimizing with respect to derive the uncertainty relation:
where is the commutator of with and
I've been stuck on this question for a while and would appreciate any help. Thanks.
What's lower case delta?
3. (Original post by ben-smith)
What's lower case delta?
The lower case delta is . Where and

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