154 citations · 716 across the 10 of their papers we have counts for
10 papers
Adiabatic quantum computation with flux qubits, first experimental results
S. H. W. van der Ploeg, A. Izmalkov, M. Grajcar +10
Controllable adiabatic evolution of a multi-qubit system can be used for adiabatic quantum computation (AQC). This evolution ends at a configuration where the Hamiltonian of the sy…
Four-qubit device with mixed couplings
M. Grajcar, A. Izmalkov, S. H. W. van der Ploeg +12
We present the first experimental results on a device with more than two superconducting qubits. The circuit consists of four three-junction flux qubits, with simultaneous ferro- a…
Multiphoton transitions between energy levels in a phase-biased Cooper-pair box
V. I. Shnyrkov, Th. Wagner, D. Born +5
We investigated both theoretically and experimentally dynamic features of a phase-biased charge qubit consisting of a single-Cooper-pair transistor closed by a superconducting loop…
Direct Josephson coupling between superconducting flux qubits
M. Grajcar, A. Izmalkov, S. H. W. van der Ploeg +8
We have demonstrated strong antiferromagnetic coupling between two three-junction flux qubits based on a shared Josephson junction, and therefore not limited by the small inductanc…
Radio-Frequency Method for Investigation of Quantum Properties of Superconducting Structures
E. Il'ichev, A. Yu. Smirnov, M. Grajcar +7
We implement the impedance measurement technique (IMT) for characterization of interferometer-type superconducting qubits. In the framework of this method, the interferometer loop…
Reading-out the state inductively and microwave spectroscopy of an interferometer-type charge qubit
D. Born, V. I. Shnyrkov, W. Krech +5
We implemented experimentally an interferometer-type charge qubit consisting of a single-Cooper-pair transistor closed by a superconducting loop that is in flip-chip configuration…