70 citations · 410 across the 21 of their papers we have counts for
21 papers
Quantum Zeno dynamics of qubits in a squeezed reservoir: effect of measurement selectivity
Md. Manirul Ali, Po-Wen Chen, Alec Maassen van den Brink +1
A complete suppression of the exponential decay in a qubit (interacting with a squeezed vacuum reservoir) can be achieved by frequent measurements of adequately chosen observables.…
A quantum effect in the classical limit: nonequilibrium tunneling in the Duffing oscillator
Shu-Hao Yeh, Dong-Bang Tsai, Che-Wei Huang +2
For suitable parameters, the classical Duffing oscillator has a known bistability in its stationary states, with low- and high-amplitude branches. As expected from the analogy with…
Resonance eigenstates of the SQUID-qubit system
Alec Maassen van den Brink
We study the complex-valued resonance spectrum of a dc-SQUID coupled to a flux qubit, where the former is treated in the cubic and the latter in the two-level approximation. It is…
Galvanic coupling of flux qubits: simple theory and tunability
Alec Maassen van den Brink
Galvanic coupling of small-area (three-junction) flux qubits, using shared large Josephson junctions, has been shown to yield appreciable interaction strengths in a flexible design…
A characterization of global entanglement
Peter J. Love, Alec Maassen van den Brink, A. Yu. Smirnov +5
We define a set of entanglement monotones for qubits and give a single measure of entanglement in terms of these. This measure is zero except on globally entangled…
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…