Quantum noise in the Josephson charge qubit

Abstract

We study decoherence of the Josephson charge qubit by measuring energy relaxation and dephasing with help of the single-shot readout. We found that the dominant energy relaxation process is a spontaneous emission induced by quantum noise coupled to the charge degree of freedom. Spectral density of the noise at high frequencies is roughly proportional to the qubit excitation energy.

Submitted to Phys. Rev. Letters

References in corpus (12)

• Quantum state engineering with Josephson-junction devices
• Coherent control of macroscopic quantum states in a single-Cooper-pair box
• Manipulating the Quantum State of an Electrical Circuit
• Coherent Quantum Dynamics of a Superconducting Flux Qubit
• Quantum oscillations in two coupled charge qubits
• Demonstration of conditional gate operation using superconducting charge qubits
• Charge echo in a Cooper-pair box
• Coherent dynamics of a Josephson charge qubit
• Detection of Quantum Noise from an Electrically-Driven Two-Level System
• Single-shot measurement of the Josephson charge qubit
• Quantum computing and quantum measurement with mesoscopic Josephson junctions
• Rabi oscillations, Ramsey fringes and spin echoes in an electrical circuit

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