Fast ion shuttling methods for segmented ion traps*

I will present a new scheme for fast diabatic control of ion trap potentials, based on the use of in-vacuum high-speed switched electronics [1]. We have investigated theoretically the use of this method for transport within a single oscillation cycle of the ion in the trap, and for producing squeezed vacuum states. I will describe the cryogenic apparatus we are developing for investigating these possibilities using a micro-fabricated surface-electrode trap. In a second approach to ion transport using analog waveforms, I will describe the use of Tikhonov regularization to calculate voltage sequences required for shuttling chains containing Ca$^{+}$ and Be$^{+}$ ions in a segmented linear Paul trap. \\[4pt] [1] Alonso et al. arxiv:quant-ph/1208.3986, to be published in New Journal of Physics (2013)