Josephson persistent-current qubit

@article{Mooij1999JosephsonPQ,
  title={Josephson persistent-current qubit},
  author={Mooij and Orlando and Levitov and Tian and CH vanderWal and Lloyd},
  journal={Science},
  year={1999},
  volume={285 5430},
  pages={
          1036-9
        }
}
A qubit was designed that can be fabricated with conventional electron beam lithography and is suited for integration into a large quantum computer. The qubit consists of a micrometer-sized loop with three or four Josephson junctions; the two qubit states have persistent currents of opposite direction. Quantum superpositions of these states are obtained by pulsed microwave modulation of the enclosed magnetic flux by currents in control lines. A superconducting flux transporter allows for… CONTINUE READING

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