How to measure the wave-function absolute squared of a moving particle by using mirrors

Abstract

We consider a slow particle with wave function ${\psi }_t(\vec{x})$, moving freely in some direction. A mirror is briefly switched on around a time $T$ and its position is scanned. It is shown that the measured reflection probability then allows the determination of $|{\psi }_T(\vec{x}){|}^2$. Experimentally available atomic mirrors should make this method applicable to the center-of-mass wave function of atoms with velocities in the cm/s range.

4 pages, 5 figures

References in corpus (2)

• Low velocity quantum reflection of Bose-Einstein condensates
• Quantum optical time-of-arrival model in three dimensions