Nondestructive readout for a superconducting flux qubit.
نویسندگان
چکیده
We present a new readout method for a superconducting flux qubit, based on the measurement of the Josephson inductance of a superconducting quantum interference device that is inductively coupled to the qubit. The intrinsic flux detection efficiency and backaction are suitable for a fast and nondestructive determination of the quantum state of the qubit, as needed for readout of multiple qubits in a quantum computer. We performed spectroscopy of a flux qubit and we measured relaxation times of the order of 80 micros.
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ورودعنوان ژورنال:
- Physical review letters
دوره 93 17 شماره
صفحات -
تاریخ انتشار 2004