How to measure the wave function absolute squared of a moving particle by using mirrorsV. Hannstein and G. C. Hegerfeldt
Institut für Theoretische Physik, Universität Göttingen - Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
received 20 October 2006; accepted in final form 31 January 2007; published March 2007
published online 28 February 2007
We consider a slow particle with wave function , 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 . 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.
03.65.Wj - State reconstruction, quantum tomography.
03.75.Be - Atom and neutron optics.
32.80.Lg - Mechanical effects of light on atoms, molecules, and ions.
© Europhysics Letters Association 2007