Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment



J. Cohn, Arghavan Safari-Naini, R. J. Lewis-Swan, Justin G. Bohnet, M. Garttner, Kevin Gilmore, Elena Jordan, Ana Maria Rey, John Bollinger, James K. Freericks


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.
New Journal of Physics


bang-bang shortcut to adiabaticity, Dicke model, many-body entanglement, trapped-ion quantum simulator


Cohn, J. , Safari-Naini, A. , Lewis-Swan, R. , Bohnet, J. , Garttner, M. , Gilmore, K. , Jordan, E. , Rey, A. , Bollinger, J. and Freericks, J. (2018), Bang-bang shortcut to adiabaticity in the Dicke model as realized in a Penning trap experiment, New Journal of Physics, [online], (Accessed April 12, 2024)
Created May 28, 2018, Updated October 12, 2021