6533b7dafe1ef96bd126e152

RESEARCH PRODUCT

Fast separation of two trapped ions

Andreas RuschhauptUlrich PoschingerM. PalmeroS. Martínez-garaotJ. G. MugaJ. G. Muga

subject

PhysicsQuantum PhysicsTime evolutionGeneral Physics and AstronomyFOS: Physical sciencesIonMaxima and minimaNormal modeQuartic functionHarmonicIon trapAtomic physicsQuantum Physics (quant-ph)Excitation

description

We design fast protocols to separate or recombine two ions in a segmented Paul trap. By inverse engineering the time evolution of the trapping potential composed of a harmonic and a quartic term, it is possible to perform these processes in a few microseconds without final excitation. These times are much shorter than the ones reported so far experimentally. The design is based on dynamical invariants and dynamical normal modes. Anharmonicities beyond the harmonic approximation at potential minima are taken into account perturbatively. The stability versus an unknown potential bias is also studied.

https://dx.doi.org/10.48550/arxiv.1505.04942