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In this chapter we explain how to obtain a two-level system starting from superconducting circuits. In particular we consider the Josephson junction and the SQUID (Superconducting QUantum Interference Device) and we focus on the charge qubit and the transmon qubit. We also describe the coupling between a charge qubit and a 1-D transmission line resonator leading to a coupling Hamiltonian similar to that obtained in cavity QED experiments.

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Superconducting Qubits: Charge and Transmon Qubits

  • 章节

  • 发表日期：

    2025年

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  • Stefano Olivares

摘要

In this chapter we explain how to obtain a two-level system starting from superconducting circuits. In particular we consider the Josephson junction and the SQUID (Superconducting QUantum Interference Device) and we focus on the charge qubit and the transmon qubit. We also describe the coupling between a charge qubit and a 1-D transmission line resonator leading to a coupling Hamiltonian similar to that obtained in cavity QED experiments.