Variable-frequency-controlled coupling in charge qubit circuits: Effects of microwave field on qubit-state readout

Abstract

To implement quantum information processing, microwave fields are often used to manipulate superconuducting qubits. We study how the coupling between superconducting charge qubits can be controlled by variable-frequency magnetic fields. We also study the effects of the microwave fields on the readout of the charge-qubit states. The measurement of the charge-qubit states can be used to demonstrate the statistical properties of photons.

7 pages, 3 figures

References in corpus (4)

• Superconducting Circuits and Quantum Information
• Scalable superconducting qubit circuits using dressed states
• Direct Josephson coupling between superconducting flux qubits
• Generalized switchable coupling for superconducting qubits using double resonance

Cited by in corpus (1)

• Protecting entanglement in superconducting qubits