Year: 2008
Type: article
Abstract: 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.
Source: Physical Review B
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, National Security Agency, Russian Foundation for Basic Research, Natural Sciences and Engineering Research Council of Canada, Engineering and Physical Sciences Research Council, Japan Society for the Promotion of Science, European Social Fund, Army Research Office
OpenAlex ID: W2054518367