Characterization of an entangled system of two superconducting qubits using a multiplexed capacitance measurement
Artikel i vetenskaplig tidskrift, 2009

We characterize a pair of Cooper-pair boxes coupled with a fixed capacitor using spectroscopy and measurements of the ground-state quantum capacitance. We use the extracted parameters to estimate the concurrence or degree of entanglement between the two qubits. We also present a thorough demonstration of a multiplexed quantum capacitance measurement technique, which is in principle scalable to a large array of superconducting qubits.

Författare

M. D. Shaw

Justin Schneiderman

J. Bueno

B. S. Palmer

Per Delsing

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

P. M. Echternach

Physical Review B - Condensed Matter and Materials Physics

1098-0121 (ISSN)

Vol. 79 1

Ämneskategorier

Fysik

Den kondenserade materiens fysik

DOI

10.1103/PhysRevB.79.014516

Mer information

Skapat

2017-10-07