Quantum characteristics of trapped ion

Wayne M. Itano, James C Bergquist, J. J. Bollinger +5 more

Feng Mang, Juhao Wu, Wang Kelin

Based on the former studies, the time-dependent characteristics of the wave packets of a Paul-trapped ion are investigated explicitly in cylindrical coordinates by the method of function series expansion (FSE). It is shown that the present work relates the quantum motion of a Paul-trapped ion to the orbit of the classical motion and presents a more clear physical picture than the former studies.

Karli E. Wallace, Michael K. Roberts, Leleia A. Hsia +1 more

At the forefront of quantum technology, trapped ion quantum computing offers unparalleled prospects for computation and data processing. This paper proposes securing trapped ion computing hardware with physically unclonable characteristics (PUCs), leveraging fabrication-induced device variations. We review Sandia's High Optical Access trap and IonQ's Iris trap processors, suggesting potential PUC characteristics for evaluation. We also present our experimental methodology and preliminary results using calibration data (SPAM error, 1Q, and 2Q errors) and results from benchmarking algorithms (Single Qubit State Fidelity and Hadamard Quantum Walks) as characteristics. Our findings indicate that, except for 2Q errors, calibration data characteristics lack promise as PUCs due to low variation. In contrast, benchmarking algorithms, particularly the Single Qubit State Fidelity, the 2-, 3-, and 5-qubit, 1-step Hadamard Walk, and the 5-qubit, 10-step Hadamard Walk show potential as PUC characteristics due to their high variation.

Ch. Wunderlich, Ch. Balzer

Dahyun Yum, Ye Wang, Kuan Zhang +2 more

We develop a three-dimensional (3D) monolithic ion trap that has advantages of both 3D geometry trap and surface trap. The characteristic properties are measured, i.e. the axial and radial trap frequency and heating rate. We successfully load Yb and Ba ions together in this trap. The hybrid ion trap will be used for quantum information experiment.

J. F. Poyatos, S. A. Gardiner, R. Walser +3 more