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Quantum metamaterials: electromagnetic waves in a Josephson qubit line

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posted on 23.07.2013 by Alexander L. Rakhmanov, Alexandre Zagoskin, Sergey Saveliev, Franco Nori
We consider the propagation of a classical electromagnetic wave through a transmission line, formed by identical superconducting charge qubits inside a superconducting resonator. Since the qubits can be in a coherent superposition of quantum states, we show that such a system demonstrates interesting effects, such as a “breathing” photonic crystal with an oscillating band gap and a “quantum Archimedean screw” that transports, at an arbitrary controlled velocity, Josephson plasma waves through a transmission line. The key ingredient of these effects is that the optical properties of the Josephson transmission line are controlled by the quantum coherent state of the qubits.

History

School

  • Science

Department

  • Physics

Citation

RAKHMANOV, A.L. ... et al, 2008. Quantum metamaterials: electromagnetic waves in a Josephson qubit line. Physical Review B, 77 (14), 144507.

Publisher

© The American Physical Society

Version

VoR (Version of Record)

Publication date

2008

Notes

This article was published in the journal, Physical Review B [© The American Physical Society]. It is also available at: http://dx.doi.org/10.1103/PhysRevB.77.144507

ISSN

1098-0121

eISSN

1550-235X

Language

en

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