Composer Basics

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Most common expressions

  • Infinite(a,b) = $\begin{cases} 0, \quad a < x < b \\ \infty, \quad \text{otherwise} \end{cases}$
  • Box(a,b) = $\begin{cases} 1, \quad a < x < b \\ 0, \quad \text{otherwise} \end{cases}$
  • Step(a) = $\begin{cases} 0, \quad x < a \\ 1, \quad \text{otherwise} \end{cases}$ 
  • The harmonic potential:  0.5*a*x^2
  • Gaussian wave packet:  sqrt(sqrt(a/pi))*exp(-0.5*a*x^2)

Error:                 Warning:

         

Errors indicate that the node is unable to calculate its outputs, while warnings simply indicate possible oversights that may lead to surprising behavior.

Composer normalizes the wave functions with the natural unit-system of $ \hbar = m = 1 $