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Quantum State Transfer in Trapped-Ion-Cavity Systems

Yu Jing Guo, Jie‐Qiao Liao, Kuang Le-Man

We study the information transfer and entanglement transfer in a system consisting of single trapped ions in cavities by the three-mode cross-Kerr-like interaction among the cavity field (photons), the centre-of-mass motion (phonons) and the internal state of the trapped ion in the Lamb–Dicke and large detuning regime.

Chinese Physics LettersOct 17, 20075 citations

Junction transport for trapped-ion quantum systems.

Daniel Stick

Nov 1, 20220 citations

Preparation of hybrid entangled states and entangled coherent states for a single trapped ion in a cavity

Jie‐Qiao Liao, Yu Guo, Hao‐Sheng Zeng +1 more

In this paper, we study generation of entangled states in a system which consists of a single trapped ion in a cavity. We obtain a cross-Kerr-like interaction between the cavity field (photons) and the centre-of-mass motion (phonons) of the trapped ion in the Lamb–Dicke and large detuning regime. Based on this cross-Kerr-like interaction, we create hybrid entangled states between the phonon mode and the ionic internal states, and between the cavity field and ionic internal states, respectively. We also show that it is possible to prepare entangled coherent states between the cavity field and the phonon mode. We explicitly obtain an entangled state between two pairs of Schrödinger-cat states.In this paper, we study generation of entangled states in a system which consists of a single trapped ion in a cavity. We obtain a cross-Kerr-like interaction between the cavity field (photons) and the centre-of-mass motion (phonons) of the trapped ion in the Lamb–Dicke and large detuning regime. Based on this cross-Kerr-like interaction, we create hybrid entangled states between the phonon mode and the ionic internal states, and between the cavity field and ionic internal states, respectively. We also show that it is possible to prepare entangled coherent states between the cavity field and the phonon mode. We explicitly obtain an entangled state between two pairs of Schrödinger-cat states.

Journal of Physics B Atomic Molecular and Optical PhysicsNov 7, 200614 citations

Engineering a Trapped Ion Open-System Dicke Model with Dissipative Phase Transitions

Florentin Reiter, Malte D. Dueholm, Anders Søndberg Sørensen +1 more

Bulletin of the American Physical SocietyJun 6, 20170 citations

Effective cross-Kerr nonlinearity and robust phase gates with trapped ions

F. L. Semião, A. Vidiella-Barranco

We derive an effective Hamiltonian that describes a cross-Kerr-type interaction in a system involving a two-level trapped ion coupled to the quantized field inside a cavity. We assume a large detuning between the ion and field (dispersive limit) and this results in an interaction Hamiltonian involving the product of the (bosonic) ionic vibrational motion and field number operators. We also demonstrate the feasibility of operation of a phase gate based on our Hamiltonian. The gate is insensitive to spontaneous emission, an important feature for the practical implementation of quantum computing.We derive an effective Hamiltonian that describes a cross-Kerr-type interaction in a system involving a two-level trapped ion coupled to the quantized field inside a cavity. We assume a large detuning between the ion and field (dispersive limit) and this results in an interaction Hamiltonian involving the product of the (bosonic) ionic vibrational motion and field number operators. We also demonstrate the feasibility of operation of a phase gate based on our Hamiltonian. The gate is insensitive to spontaneous emission, an important feature for the practical implementation of quantum computing.

arXiv:quant-ph/0511213Physical Review ADec 16, 200527 citations

Quantum characteristics of trapped ion

Masatoshi Kajita

Institute of Physics eBooksDec 1, 20220 citations

Quantum State Transfer in Trapped-Ion-Cavity Systems

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Quantum State Transfer in Trapped-Ion-Cavity Systems

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