Quantum Jumps between Macroscopic Quantum States of a Superconducting Qubit Coupled to a Microscopic Two-Level System
arXiv:0807.0766 · doi:10.1103/PhysRevLett.101.157001
Abstract
We report the observation of quantum jumps between macroscopic quantum states in a superconducting phase qubit coupled to the two-level systems in the Josephson tunnel junction, and all key features of quantum jumps are confirmed in the experiments. Moreover, quantum jumps can be used to calibrate such two-level systems, which are believed to be one of the main decoherence sources in Josephson devices.
title changed; updated by the published version
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- A Controllable Interaction between Two-Level Systems inside a Josephson Junction
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