@article{4108, author = {J Cohn and Arghavan Safavi-Naini and Robert Lewis-Swan and Justin Bohnet and Martin Gärttner and Kevin Gilmore and J. Jordan and Ana Maria Rey and John Bollinger and J. Freericks}, title = {Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment}, abstract = {We introduce a bang-bang shortcut to adiabaticity for the Dicke model, which we implement via a two-dimensional array of trapped ions in a Penning trap with a spin-dependent force detuned close to the center-of-mass drumhead mode. Our focus is on employing this shortcut to create highly entangled states that can be used in high-precision metrology. We highlight that the performance of the bang-bang approach is comparable to standard preparation methods, but can be applied over a much shorter time frame. We compare these theoretical ideas with experimental data which serve as a first step towards realizing this theoretical procedure for generating multi-partite entanglement.}, year = {2018}, journal = {New Journal of Physics}, volume = {20}, pages = {055013}, month = {2018-05}, url = {http://iopscience.iop.org/article/10.1088/1367-2630/aac3fa/meta}, doi = {10.1088/1367-2630/aac3fa}, }