Quantum Zeno Effect in the Strong Measurement Regime of Circuit Quantum Electrodynamics

Abstract

We observe the quantum Zeno effectwhere the act of measurement slows the rate of quantum state transitionsin a superconducting qubit using linear circuit quantum electrodynamics readout and a near-quantum-limited following amplifier. Under simultaneous strong measurement and qubit drive, the qubit undergoes a series of quantum jumps between states. These jumps are visible in the experimental measurement record and are analyzed using maximum likelihood estimation to determine qubit transition rates. The observed rates agree with both analytical predictions and numerical simulations. The analysis methods are suitable for processing general noisy random telegraph signals.

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Document Details

Document Type
Technical Report
Publication Date
May 17, 2016
Accession Number
AD1010137

Entities

People

  • A. Blais
  • C. Müller
  • D. H. Slichter
  • I. Siddiqi
  • R. Vijay
  • S. J. Weber

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplifiers
  • Data Processing
  • Data Sets
  • Distribution Functions
  • Dwell Time
  • Energy Levels
  • Equations
  • Experimental Data
  • Filtration
  • Frequency
  • Ground State
  • Parametric Amplifiers
  • Probability
  • Probability Distributions
  • Quantum Electrodynamics
  • Time Intervals
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots