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arXiv · 0909.3082

Energies and Entanglement in Multiply-coupled Phase Qubit Systems

Z. Thrailkill·S. Kennerly·A. Tyler·R. C. Ramos
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Abstract

The superconducting Josephson junction has been demonstrated to be a strong candidate for building quantum bits or "qubits" which are the components of a future quantum computer. In recent years, considerable theoretical and experimental effort have been focused on studying quantum properties of single qubits and two coupled solid-state qubits. We present results of numerical simulations of the energy spectra of more three phase qubits that are capacitively-coupled in different configurations. We discuss the ensuing entanglement between component qubits as manifested in avoided crossings and how these may play a role in building gates and transmitting qubit state information.

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Z. Thrailkill, S. Kennerly, A. Tyler, R. C. Ramos. 2009-09-16. Energies and Entanglement in Multiply-coupled Phase Qubit Systems. https://doi.org/10.1088/1742-6596/150/5/052268

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