Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation

Alexandre Blais, Ren-Shou Huang, Andreas Wallraff, S. M. Girvin, and R. J. Schoelkopf
Phys. Rev. A 69, 062320 – Published 29 June 2004

Abstract

We propose a realizable architecture using one-dimensional transmission line resonators to reach the strong-coupling limit of cavity quantum electrodynamics in superconducting electrical circuits. The vacuum Rabi frequency for the coupling of cavity photons to quantized excitations of an adjacent electrical circuit (qubit) can easily exceed the damping rates of both the cavity and qubit. This architecture is attractive both as a macroscopic analog of atomic physics experiments and for quantum computing and control, since it provides strong inhibition of spontaneous emission, potentially leading to greatly enhanced qubit lifetimes, allows high-fidelity quantum nondemolition measurements of the state of multiple qubits, and has a natural mechanism for entanglement of qubits separated by centimeter distances. In addition it would allow production of microwave photon states of fundamental importance for quantum communication.

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  • Received 7 February 2004
  • Corrected 23 July 2004

DOI:https://doi.org/10.1103/PhysRevA.69.062320

©2004 American Physical Society

Corrections

23 July 2004

Erratum

Publisher's Note: Cavity quantum electrodynamics for superconducting electrical circuits: An architecture for quantum computation [Phys. Rev. A 69, 062320 (2004)]

Alexandre Blais, Ren-Shou Huang, Andreas Wallraff, S. M. Girvin, and R. J. Scheolkopf
Phys. Rev. A 70, 019901 (2004)

Authors & Affiliations

Alexandre Blais1, Ren-Shou Huang1,2, Andreas Wallraff1, S. M. Girvin1, and R. J. Schoelkopf1

  • 1Departments of Physics and Applied Physics, Yale University, New Haven, Connecticut 06520, USA
  • 2Department of Physics, Indiana University, Bloomington, Indiana 47405, USA

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Issue

Vol. 69, Iss. 6 — June 2004

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