Broadband filters for abatement of spontaneous emission in circuit quantum electrodynamics

Abstract

The ability to perform fast, high-fidelity readout of quantum bits (qubits) is essential to the goal of building a quantum computer. However, coupling a fast measurement channel to a superconducting qubit typically also speeds up its relaxation via spontaneous emission. Here, we use impedance engineering to design a filter by which photons may easily leave the resonator at the cavity frequency but not at the qubit frequency. We implement this broadband filter in both an on-chip and off-chip configuration.

Document Details

Document Type
Pub Defense Publication
Publication Date
Oct 26, 2015
Source ID
10.1063/1.4934867

Entities

People

  • Andrew A. Houck
  • Antonio Córcoles
  • Jared Hertzberg
  • Jay Gambetta
  • Jerry M. Chow
  • Nicholas T. Bronn
  • Yanbing Liu

Organizations

  • Intelligence Advanced Research Projects Activity
  • International Business Machines Corporation (Armonk, NY)
  • Princeton University

Tags

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Integrated Circuit Design and Technology.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots