Notes in Physik::T3

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Status	Last Update	Fields
Published	02/19/2025	What is the difference between an self adjoint operator \(\hat A\) and an unitary operator \(\hat U\)?
Published	02/05/2025	Quantum formalism.In what kind of space does qunatum mechanics lives?
Published	02/05/2025	Quantum formalism.What is a transformation in q. m.?
Published	02/05/2025	Quantum formalism.What is a measurement in q. m.?
Published	02/05/2025	Operational meaning of a q.m. measurment.How do you compute the probability to get a click at detector \(k\)?Bonus: What has to be true for it?
Published	02/05/2025	What is an observable?1. Mathamatically wise.2. How does it look like?
Published	02/05/2025	ObservablesHow would you compute the mean value of an Observable\(A\)?
Published	02/05/2025	ObservablesWhat is true or what can you do if the following is true?Let \(A,B\) be obsevables. \([A,B]=0\)
Published	02/05/2025	QM statesWhat is a pure state?What is a mixed sate?
Published	02/05/2025	QM statesHow do you describe a (mixed) state?
Published	02/05/2025	Which conditions have to be true for\(\rho=\begin{pmatrix} a&b\\c&d \end{pmatrix},\;a,b,c,d\in \mathbb C\)?How can you write \(\rho\)&nb…
Published	02/05/2025	What is a normal operator?
Published	02/05/2025	What elements of the class of normal operators do you know which are important for QM?
Published	02/05/2025	What is a projection operator \(\hat P\)?What is special about the eigen values?
Published	02/05/2025	How does a collaps of a pure quantum state looks like mathemarically?
Published	02/09/2025	Definition.Singlet.
Published	02/05/2025	Singlets. Under what is a singlet invariant?
Status	Last Update	Fields