1 citations · 1 across the 4 of their papers we have counts for
5 papers
Performance optimization of cascaded traveling wave Josephson parametric amplifiers
Ilari Lilja, Ekaterina Mukhanova, Stanislav Khaldeev +3
Traveling-wave parametric amplifiers (TWPAs) based on Josephson metamaterials provide broadband gain with near-quantum-limited added noise. Whereas long nonlinear metamaterial devi…
Phase-sensitive cascade quantum amplifier with nearly noiseless operation
Ilari Lilja, Ekaterina Mukhanova, Michael Perelshtein +5
Phase-sensitive parametric devices enable quadrature-selective amplification with the potential for sub-quantum-limited noise performance. In this work, we investigate the operatio…
Bipartite entanglement under frequency comb pumping in parametric Josephson circuits
Mikael Vartiainen, Ilari Lilja, Ekaterina Mukhanova +3
The creation of high-quality cluster states in superconducting microwave circuits is a relevant ingredient in continuous-variable quantum computing. Although large-scale cluster st…
1/f frequency fluctuations due to kinetic inductance in CoSi microwave cavities
Weijun Zeng, Ilari Lilja, Ekaterina Mukhanova +5
Cobalt disilicide provides a promising nearly-epitaxial superconducting material on silicon, which is compatible with high-density integrated circuit technology. We have characteri…
Kinetic inductance in superconducting CoSi coplanar microwave transmission lines
Ekaterina Mukhanova, Weijun Zeng, Elica Anne Heredia +5
We have looked into cobalt disilicide (CoSi) as a potential building block for superconducting quantum circuits. In order to achieve this, we annealed a thin layer of Co to cre…