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arXiv · 0802.1308

Dispersive Coupling Between the Superconducting Transmission Line Resonator and the Double Quantum Dots

Guo-Ping Guo·Hui Zhang·Yong Hu·Tao Tu·Guang-Can Guo
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Abstract

Realization of controllable interaction between distant qubits is one of the major problems in scalable solid state quantum computing. We study a superconducting transmission line resonator (TLR) as a tunable dispersive coupler for the double-dot molecules. A general interaction Hamiltonian of $n$ two-electron spin-based qubits and the TLR is presented, where the double-dot qubits are biased at the large detuning region and the TLR is always empty and virtually excited. Our analysis o the main decoherence sources indicates that various major quantum operations can be reliably implemented with current technology.

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Guo-Ping Guo, Hui Zhang, Yong Hu, Tao Tu, Guang-Can Guo. 2008-05-30. Dispersive Coupling Between the Superconducting Transmission Line Resonator and the Double Quantum Dots. https://doi.org/10.1103/physreva.78.020302

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