64 citations · 327 across the 10 of their papers we have counts for
10 papers
Scalable arrays of micro-Penning traps for quantum computing and simulation
Shreyans Jain, Joseba Alonso, Matt Grau +1
We propose the use of 2-dimensional Penning trap arrays as a scalable platform for quantum simulation and quantum computing with trapped atomic ions. This approach involves placing…
Energy consumption for ion transport in a segmented Paul trap
A. Tobalina, J. Alonso, J. G. Muga
There is recent interest in determining energy costs of shortcuts to adiabaticity (STA), but different definitions of "cost" have been used. We demonstrate the importance of taking…
Probing the limits of correlations in an indivisible quantum system
M. Malinowski, C. Zhang, F. M. Leupold +3
We employ a trapped ion to study quantum contextual correlations in a single qutrit using the 5-observable KCBS inequality, which is arguably the most fundamental non-contextuality…
Sustained state-independent quantum contextual correlations from a single ion
F. M. Leupold, M. Malinowski, C. Zhang +4
We use a single trapped-ion qutrit to demonstrate the violation of an input-state-independent non-contextuality inequality using a sequence of randomly chosen quantum non-demolitio…
Fast quantum control and light-matter interactions at the 10,000 quanta level
J. Alonso, F. M. Leupold, Z. U. Soler +5
Fast control of quantum systems is essential in order to make use of quantum properties before they are degraded by decoherence. This is important for quantum-enhanced information…
Fast expansions and compressions of trapped-ion chains
M. Palmero, S. Martínez-Garaot, J. Alonso +2
We investigate the dynamics under diabatic expansions/compressions of linear ion chains.Combining a dynamical normal-mode harmonic approximation with the invariant-based inverse-en…
Optimal electrode geometries for 2-dimensional ion arrays with bi-layer ion traps
F. N. Krauth, J. Alonso, J. P. Home
We investigate electrode geometries required to produce periodic 2-dimensional ion-trap arrays with the ions placed between two planes of electrodes. We present a generalization of…
Fast transitionless expansions of Gaussian anharmonic traps for cold atoms: bang-singular-bang control
Xiao-Jing Lu, Xi Chen, J. Alonso +1
Combining invariant-based inverse engineering, perturbation theory, and Optimal Control Theory, we design fast, transitionless expansions of cold neutral atoms or ions in Gaussian…
All-solid-state continuous-wave laser systems for ionization, cooling and quantum state manipulation of beryllium ions
H. -Y. Lo, J. Alonso, D. Kienzler +4
We describe laser systems for photoionization, Doppler cooling and quantum state manipulation of beryllium ions. For photoionization of neutral beryllium, we have developed a conti…
Quantum control of the motional states of trapped ions through fast switching of trapping potentials
J. Alonso, F. M. Leupold, B. C. Keitch +1
We propose a new scheme for supplying voltages to the electrodes of microfabricated ion traps, enabling access to a regime in which changes to the trapping potential are made on ti…