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Quantum Manipulations of Single Trapped-Ions beyond the Lamb-Dicke Limit

Miao Zhang, L. F. Wei

InTech eBooksNov 30, 20100 citations

NOON state generation beyond the Lamb–Dicke limit in trapped-ion systems

Xin-Jie Huang, Lei Chen, Wan-Jun Su +1 more

Quantum Information ProcessingNov 1, 20201 citation

Elementary operations for quantum logic with a single trapped two-level cold ion beyond Lamb-Dicke limit

L. F. Wei, S.Y. Liu, X. L. Lei

arXiv:quant-ph/0205116Optics CommunicationsJul 1, 200210 citations

Preparation of Schrödinger cat states with cold ions in a cavity beyond the Lamb-Dicke limit

Dagoberto S. Freitas, Jairo R Rocha

We investigate the dynamics of a cold trapped ion coupled to the quantized field inside a high-finesse cavity. We have used an approach for preparing the SC states of motion of ion. This approach, based on unitary transformating the Hamiltonian, allows its exact diagonalization without performing the Lamb-Dicke aproximation. We show that is possible to generate a SC states having rather simple initial state preparation, e.g., the vacuum sate for both cavity field and the ion motion.

arXiv:1011.1163Nov 4, 20100 citations

Generation of Schrödinger cat state of a single trapped cold ion

Miao Zhang, Jia Huan-Yu, Ji Xiao-Hui +1 more

The fidelity of the generated Schrodinger Cat state (SCS) of a single trapped ion in the Lamb–Dicke approximation is discussed. The results show that the fidelity significantly decreases with the values of Lamb–Dicke parameter η and coherent state amplitude α increasing. For η = 0.20 and α = 3, the typical values of experimental parameters, the fidelity is rather low (30%). A scheme for generating the SCS is proposed without making the Lamb–Dike approximation in laser–ion interaction, and the fidelity of the generated SCS is about 99% for the typical values of experimental Lamb–Dicke parameters.The fidelity of the generated Schrodinger Cat state (SCS) of a single trapped ion in the Lamb–Dicke approximation is discussed. The results show that the fidelity significantly decreases with the values of Lamb–Dicke parameter η and coherent state amplitude α increasing. For η = 0.20 and α = 3, the typical values of experimental parameters, the fidelity is rather low (30%). A scheme for generating the SCS is proposed without making the Lamb–Dike approximation in laser–ion interaction, and the fidelity of the generated SCS is about 99% for the typical values of experimental Lamb–Dicke parameters.

Chinese Physics BMar 1, 20090 citations

Preparing Schrodinger cat states by parametric pumping

Zaki Leghtas, Steven Touzard, Ioan M. Pop +8 more

Bulletin of the American Physical SocietyMar 4, 20140 citations

Preparation of Schrödinger cat states with cold ions beyond the Lamb–Dicke limit

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