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8 papers · 1 filter
Quantum behaviour of a flux qubit coupled to a resonator
A. N. Omelyanchouk, S. N. Shevchenko, Ya. S. Greenberg +2
We present a detailed theoretical analysis for a system of a superconducting flux qubit coupled to a transmission line resonator. The master equation, accounting incoherent process…
Enhanced Logic Performance with Semiconducting Bilayer Graphene Channels
Song-Lin Li, Hisao Miyazaki, Hidefumi Hiura +2
Realization of logic circuits in graphene with an energy gap (EG) remains one of the main challenges for graphene electronics. We found that large transport EGs (>100 meV) can be f…
Deterministic entanglement of photons in two superconducting microwave resonators
H. Wang, Matteo Mariantoni, Radoslaw C. Bialczak +12
Quantum entanglement, one of the defining features of quantum mechanics, has been demonstrated in a variety of nonlinear spin-like systems. Quantum entanglement in linear systems h…
Photon shell game in three-resonator circuit quantum electrodynamics
Matteo Mariantoni, H. Wang, Radoslaw C. Bialczak +12
The generation and control of quantum states of light constitute fundamental tasks in cavity quantum electrodynamics (QED). The superconducting realization of cavity QED, circuit Q…
Charge transport through ultrasmall single and double Josephson junctions coupled to resonant modes of the electromagnetic environment
Yu. A. Pashkin, H. Im, J. Leppäkangas +5
We have investigated charge transport in ultrasmall superconducting single and double Josephson junctions coupled to resonant modes of the electromagnetic environment. We observe p…
Determination of the Number of Graphene Layers: Discrete Distribution of the Secondary Electron Intensity Derived from Individual Graphene Layers
Hidefumi Hiura, Hisao Miyazaki, Kazuhito Tsukagoshi
Using a scanning electron microscope, we observed a reproducible, discrete distribution of secondary electron intensity stemming from an atomically thick graphene film on a thick i…