Toward inertial sensing with a 2$^{3}$S positronium beam
- Mariazzi, Sebastiano et al
- arXiv:2203.02920
| Schematic of the expansion in vacuum of the $ 2^3 S $ Ps produced according to Ref.\cite{PhysRevA.99.033405}. The partially-dashed rectangle indicates a slit that can be used to select a collimated fraction of the atoms in the vertical direction. The x-y-z axes are reported (see text). |
| Number of surviving $ 2^3 S $ Ps atoms per bunch as a function of the travelled distance from the $e^+$/Ps converter in a beam with a vertical divergence of 17 mrad (black squares) and 5.5 mrad (open squares). A source intensity of $1.3 * 10^5$ $ 2^3 S $ atoms and a velocity of $10^5$ m/s for the $ 2^3 S $ atoms in a $\pm14^{\circ}$ wedge have been assumed. |
| Schematic of a classical two-grating deflectometry system with periodicity $d$. |
| Sensitivity estimate for a $ 2^3 S$ interferometer. The graph shows the behavior of the minimum detectable acceleration in arbitrary units as a function of the interrogation time. |
| Schematic of a matter wave Mach–Zehnder interferometer. Two standing light waves act like diffractive optical elements deflecting a fraction of the beam and creating the interference fringes. |
| Possible scheme of a three gratings interferometer. Both $2^3 S$ positronium atoms passing the $3^{rd}$ grid and stopped by it emits two gamma rays that can be recorded by the integrating detector. The distribution of crossing (stopped) particles can be measured as a function of the third grid position y. |