Exploring circuit quantum electrodynamics using a widely tunable superconducting resonator
Artikel i vetenskaplig tidskrift, 2009

We have fabricated and characterized systems consisting of superconducting quantum bits (qubits) of the transmon type, coupled to a tunable transmission line resonator. The resonator consists of a superconducting quarter wavelength coplanar waveguide (CPW) resonator that is made tunable by terminating the transmission line to ground through a superconducting quantum interference device (SQUID). Here we present measurements on two devices where we observe Rabi oscillations as we drive the qubit, and vacuum Rabi splitting both as we tune the qubits into resonance with the resonator and as we tune the resonator into resonance with the qubits. We also observe coherent interaction between two resonant qubits. In addition, we demonstrate that we can calculate the response very accurately using a multilevel Hamiltonian.

SQUID

Qubits

Circuit-QED

Quantum computing

Josephson junction

Strong Coupling

Vacuum Rabi

Författare

Martin Sandberg

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Fredrik Persson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Io Chun Hoi

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Christopher Wilson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Per Delsing

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Physica Scripta

0031-8949 (ISSN)

Vol. T137 Art. no. 014018-

Ämneskategorier

Den kondenserade materiens fysik

DOI

10.1088/0031-8949/2009/T137/014018

Mer information

Skapat

2017-10-06