期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 76, 期 5, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.76.054802
关键词
phase qubit; quantum circuit; entangled states; Greenberger-Horne-Zeilinger state
We consider the possibility of generating macroscopic entangled states in capacitively coupled phase qubits. First we discuss the operation of phase qubits and the implementation of the basic gate operations in them. We then analyze two possible procedures that can be used to generate n-qubit entangled states, such as the Greenberger-Home-Zeilinger state for the case n = 3. The procedures we propose are constructed under the experimentally motivated constraint of trying to minimize the number of control lines used to manipulate the qubits.
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