Home > Publications

B. Schrinski, B. A. Stickler, and K. Hornberger
Interferometric control of nanorotor alignment
Phys. Rev. A 105, L021502 (2022)


The intrinsically nonlinear rotation dynamics of rigid bodies offer unprecedented ways to exploit their quantum motion. In this Letter, we devise a rotational analog of Mach-Zehnder interferometry, which allows steering symmetric rotors from fully aligned to completely antialigned. The scheme uses a superposition of four distinct orientations, emerging at the eighth of the quantum revival time, whose interference can be controlled by a weak laser pulse. We develop a semiclassical model of the effect and demonstrate that it persists even in presence of imperfections and decoherence.

(6 pages, 2 figures)   [pdf, journal, arXiv:2110.01301]

doi:10.1103/PhysRevA.105.L021502            (c) The American Physical Society