Difference between revisions 3754248 and 4025068 on simplewiki

[[File:Particle in a box.svg|thumb|300px| A classical particle, such as a ball, bouncing between two high walls. The particle moves forwards and backwards, and can not go out.]]

(contracted; show full)s of a one-dimensional box may be visualised as regions of space with an infinitely large [[potential]].  Conversely, the interior of the box has a constant, zero potential.<ref>Actually, any constant, finite potential <math>V_0</math> can be specified within the box.  This merely shifts the energies of the states by <math>V_0</math>.</ref>  This means that no forces act upon the particle inside the box and it can move freely in that region.  However, infinitely large [[
Force (physics)|forces]]s repel the particle if it touches the walls of the box, preventing it from escaping.  The potential in this model is given as
:<math>V(x) =
\begin{cases}
0, & 0 < x < L,\\
\infty, & \text{otherwise,}
\end{cases},
</math>
where <math>L</math> is the length of the box and <math>x</math> is the position of the particle within the box.
(contracted; show full)[[it:Particella in una scatola]]
[[he:בור פוטנציאל אינסופי]]
[[ja:井戸型ポテンシャル]]
[[pl:Cząstka w studni potencjału]]
[[pt:Partícula em uma caixa]]
[[sv:Partikel i låda]]
[[uk:Квантовий рух в прямокутній потенційній ямі]]
[[zh:無限深方形阱]]