n-qubit-controlled phase gate with superconducting quantum-interference devices coupled to a resonator
Journal Article
·
· Physical Review. A
- Department of Physics and Astronomy, University of Kansas, Lawrence, Kansas 66045 (United States)
We present a way to realize an n-qubit controlled phase gate with superconducting quantum-interference devices (SQUIDs) by coupling them to a superconducting resonator. In this proposal, the two logical states of a qubit are represented by the two lowest levels of a SQUID. An intermediate level of each SQUID is utilized to facilitate coherent control and manipulation of quantum states of the qubits. It is interesting to note that an n-qubit controlled phase gate can be achieved with n SQUIDs by successively applying a {pi}/2 Jaynes-Cummings pulse to each of the n-1 control SQUIDs before and after a {pi} Jaynes-Cummings pulse on the target SQUID.
- OSTI ID:
- 20718497
- Journal Information:
- Physical Review. A, Vol. 72, Issue 3; Other Information: DOI: 10.1103/PhysRevA.72.032311; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
- Country of Publication:
- United States
- Language:
- English
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