# Expectation value

QuestionsCategory: Quantum MechancisExpectation value
Akhil Giri asked 4 years ago

Describe expectation value( quantum mechanics). Is it the average value or it something different?..describe ..

Although the notation used to denote the expectation value of some observable is the same as the one used for the mean(average), the expectation value is a little different than an ordinary average. Notation being: $\left$ for the expectation value of p.