121 citations · 318 across the 12 of their papers we have counts for
12 papers
Three-mode tunable coupler for superconducting two-qubit gates
Elena Yu. Egorova, Alena S. Kazmina, Ilya A. Simakov +7
Building a scalable universal high-performance quantum processor is a formidable challenge. In particular, the problem of realizing fast high-perfomance two-qubit gates of high-fid…
Demonstration of a parity-time symmetry breaking phase transition using superconducting and trapped-ion qutrits
Alena S. Kazmina, Ilia V. Zalivako, Alexander S. Borisenko +21
Scalable quantum computers hold the promise to solve hard computational problems, such as prime factorization, combinatorial optimization, simulation of many-body physics, and quan…
High-fidelity transmon coupler activated CCZ gate on fluxonium qubits
Ilya A. Simakov, Grigoriy S. Mazhorin, Ilya N. Moskalenko +2
The Toffoli gate takes a special place in the quantum information theory. It opens up a path for efficient implementation of complex quantum algorithms. Despite tremendous progress…
Coupler microwave-activated controlled phase gate on fluxonium qubits
Ilya A. Simakov, Grigoriy S. Mazhorin, Ilya N. Moskalenko +8
Tunable couplers have recently become one of the most powerful tools for implementing two-qubit gates between superconducting qubits. A tunable coupler typically includes a nonline…
Low-overhead quantum error correction codes with a cyclic topology
Ilya. A. Simakov, Ilya. S. Besedin
Quantum error correction is an important ingredient for scalable quantum computing. Stabilizer codes are one of the most promising and straightforward ways to correct quantum error…
High fidelity two-qubit gates on fluxoniums using a tunable coupler
Ilya N. Moskalenko, Ilya A. Simakov, Nikolay N. Abramov +7
Superconducting fluxonium qubits provide a promising alternative to transmons on the path toward large-scale superconductor-based quantum computing due to their better coherence an…
Cavity-QED of a quantum metamaterial with tunable disorder
Grigoriy S. Mazhorin, Ilya N. Moskalenko, Ilya S. Besedin +8
We explore experimentally a quantum metamaterial based on a superconducting chip with 25 frequency-tunable transmon qubits coupled to a common coplanar resonator. The collective br…
Topological photon pairs in a superconducting quantum metamaterial
Ilya S. Besedin, Maxim A. Gorlach, Nikolay N. Abramov +9
Recent discoveries in topological physics hold a promise for disorder-robust quantum systems and technologies. Topological states provide the crucial ingredient of such systems fea…
Quality factor of a transmission line coupled coplanar waveguide resonator
Ilya Besedin, Alexey P. Menushenkov
We investigate analytically the coupling of a coplanar waveguide resonator to a coplanar waveguide feedline. Using a conformal mapping technique we obtain an expression for the cha…
Quantifying Angular Correlations between the Atomic Lattice and Superlattice of Nanocrystals Assembled with Directional Linking
Ivan. A. Zaluzhnyy, Ruslan P. Kurta, Alexander Andre +9
We show that the combination of X-ray scattering with a nanofocused beam and X-ray cross correlation analysis is an efficient means for the full structural characterization of meso…
High-dynamic-range water window ptychography
Max Rose, Dmitry Dzhigaev, Tobias Senkbeil +8
Ptychographic imaging with soft X-rays, especially in the water window energy range, suffers from limited detector dynamic range that directly influences the maximum spatial resolu…
Discrete gap solitons in binary positive-negative index nonlinear waveguide arrays with strong second-order couplings
Alexander A. Dovgiy, Ilya S. Besedin
We report on existence and properties of discrete gap solitons in zigzag arrays of alternating waveguides with positive and negative refractive indices. Zigzag quasi-one-dimensiona…