Krypton-sputtered tantalum films for scalable high-performance quantum devices
Awschalom, D. D., Bernien, H., Hanson, R., Oliver, W. D. & Vučković, J. Challenges and opportunities for quantum…
Conductance measurements cannot distinguish crossed Andreev reflection from elastic co-tunnelling in normal–superconductor–normal junctions
Feng, J. et al. Long-range crossed Andreev reflection in a topological insulator nanowire proximitized by a superconductor. Nat.…
Detecting genuine multipartite entanglement in multi-qubit devices with restricted measurements
Background and notation Let us first state some definitions from graph theory that are relevant for this paper.…
Approaching optimal microwave–acoustic transduction on lithium niobate using superconducting quantum interference device arrays
Brubaker, B. M. et al. Optomechanical ground-state cooling in a continuous and efficient electro-optic transducer. Phys. Rev. X…
Quantum superconducting diode effect with perfect efficiency above liquid-nitrogen temperature
Ando, F. et al. Observation of superconducting diode effect. Nature 584, 373–376 (2020). Article Google Scholar Hu, J.,…
Strong coupling of a superconducting flux qubit to single bismuth donors
In this work, we couple spins to a highly non-linear circuit with huge current quantum fluctuations18,19,20. This circuit…
Spin environment of a superconducting qubit in high magnetic fields
In Fig. 1 we present the field resilient gralmonium qubit, fabricated from a single layer of grAl (cf. Fig. 1a),…
Giant shot noise in superconductor/ferromagnet junctions with orbital-symmetry- controlled spin-orbit coupling
Our choice of epitaxial V(100)/MgO/Fe(100) junctions appears surprising. The incompatible orbital symmetries in the electronic structure of V(100)…
A dephasing sweet spot with enhanced dipolar coupling
Device The device is depicted in Fig. 1. Detailed fabrication procedures are outlined in the Methods. This device comprises…
Deterministic generation of two-dimensional multi-photon cluster states
Device architecture and cluster state generation protocol To generate ladder-like cluster states, we use two transmon qubits whose…