Quantum Zeno effect in the strong measurement regime of circuit quantum electrodynamics

Abstract

We observe the quantum Zeno effect -- where the act of measurement slows the rate of quantum state transitions -- in 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.

15 pages, 8 figures

References in corpus (16)

• Charge insensitive qubit design derived from the Cooper pair box
• Controlling the spontaneous emission of a superconducting transmon qubit
• AC-Stark Shift and Dephasing of a Superconducting Qubit Strongly Coupled to a Cavity Field
• Observation of quantum jumps in a superconducting artificial atom
• Dispersive regime of circuit QED: photon-dependent qubit dephasing and relaxation rates
• Quantum trajectory approach to circuit QED: Quantum jumps and the Zeno effect
• Fast Reset and Suppressing Spontaneous Emission of a Superconducting Qubit
• Microwave Dielectric Loss at Single Photon Energies and milliKelvin Temperatures
• Improved Superconducting Qubit Readout by Qubit-Induced Nonlinearities
• Deterministic generation of multiparticle entanglement by quantum Zeno dynamics
• Measurement-induced qubit state mixing in circuit QED from up-converted dephasing noise
• Deterministic generation of large cluster states using non-deterministic collective measurements based on quantum Zeno effect
• Freezing a Coherent Field Growth in a Cavity by Quantum Zeno Effect
• Quantum dynamics of an electromagnetic mode that cannot contain N photons
• Identifying single electron charge sensor events using wavelet edge detection
• Improved qubit bifurcation readout in the straddling regime of circuit QED

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• Lifetime renormalization of driven weakly anharmonic superconducting qubits: II. The readout problem
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• Dephasing-assisted Gain and Loss in Mesoscopic Quantum Systems
• Keldysh meets Lindblad: Correlated Gain and Loss in Higher-Order Perturbation Theory
• Quantum Zeno subspaces by repeated multi-spin projections
• Measuring a transmon qubit in circuit QED: dressed squeezed states
• Demonstration of universal control between non-interacting qubits using the Quantum Zeno effect
• Quantum Zeno and anti-Zeno effects in quantum dissipative systems
• Lifetime renormalization of weakly anharmonic superconducting qubits: I. Role of number non-conserving terms
• Entanglement assisted probe of the non-Markovian to Markovian transition in open quantum system dynamics
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• Many-particle dephasing after a quench
• Intrinsic mechanisms for drive-dependent Purcell decay in superconducting quantum circuits
• Criterion for quantum Zeno and anti-Zeno effects
• Quantum Zeno effect with partial measurement and noisy dynamics
• Continuous quantum error correction for evolution under time-dependent Hamiltonians
• Quantum rifling: protecting a qubit from measurement back-action
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• Realization of hierarchical equations of motion from stochastic perspectives
• Always-On Quantum Error Tracking with Continuous Parity Measurements
• Quantum Brownian motion under generalized position measurements: A converse Zeno scenario
• Topological transitions in quantum jump dynamics: Hidden exceptional points
• Quantum Zeno Manipulation of Quantum Dots
• Past observable dynamics of a continuously monitored qubit
• Optimal Measurement Protocols in Quantum Zeno Effect
• Dissipative Rabi model in the dispersive regime
• The quantum Zeno and anti-Zeno effects: from weak to strong system-environment coupling
• Quantum control for the Zeno effect with noise
• Non-Hermitian interaction of a discrete state with a continuum
• Controlled Zeno-Induced Localization of Free Fermions in a Quasiperiodic Chain