# How to calculate probability wave function?

2

Asked By: Brandyn Sanford

Date created: Sun, Sep 5, 2021 1:41 AM

Date updated: Tue, Aug 16, 2022 4:29 AM

Content

Video answer: Probability in quantum mechanics

## Top best answers to the question «How to calculate probability wave function»

The configuration or state of a quantum object is completely specified by a wavefunction denoted as ψ(x). And what does ψ(x) mean? **p(x) = |ψ(x)|2** determines the probability (density) that an object in the state ψ(x) will be found at position x.

Given a normalised wavefunction say ψ(x)=Asin(nπx), (where A is a normalisation constant) I can calculate the probability of finding the particle being between a position x and x+dx as **∫x+dxxψ(x)∗ψ(x)dx**. Likewise I can calculate the expected value of the energy ⟨E⟩=∫∞−∞ψ(x)∗ˆHψ(x)dx.

Video answer: Wave function