Surpassing spectator qubits with photonic modes and continuous measurement for Heisenberg-limited noise mitigation
arXiv:2212.06821 · doi:10.1038/s41534-023-00748-y
Abstract
Noise is an ever-present challenge to the creation and preservation of fragile quantum states. Recent work suggests that spatial noise correlations can be harnessed as a resource for noise mitigation via the use of spectator qubits to measure environmental noise. In this work we generalize this concept from spectator qubits to a spectator mode: a photonic mode which continuously measures spatially correlated classical dephasing noise and applies a continuous correction drive to frequency-tunable data qubits. Our analysis shows that by using many photon states, spectator modes can surpass many of the quantum measurement constraints that limit spectator qubit approaches. We also find that long-time data qubit dephasing can be arbitrarily suppressed, even for white noise dephasing. Further, using a squeezing (parametric) drive, the error in the spectator mode approach can exhibit Heisenberg-limited scaling in the number of photons used. We also show that spectator mode noise mitigation can be implemented completely autonomously using engineered dissipation. In this case no explicit measurement or processing of a classical measurement record is needed. Our work establishes spectator modes as a potentially powerful alternative to spectator qubits for noise mitigation.
arXiv comment21 pages, 9 figures, equivalent to the published version
References in corpus (51)
- Quantum Computing in the NISQ era and beyond
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- Quantum-enhanced measurements: beating the standard quantum limit
- Dynamical Decoupling of Open Quantum Systems
- Dynamical suppression of decoherence in two-state quantum systems
- Quantum Error Correction for Quantum Memories
- 14-qubit entanglement: creation and coherence
- Keeping a Quantum Bit Alive by Optimized -Pulse Sequences
- Superconducting qubit in waveguide cavity with coherence time approaching 0.1ms
- How to Enhance Dephasing Time in Superconducting Qubits
- Quantum feedback control of a superconducting qubit: Persistent Rabi oscillations
- Qubit-photon interactions in a cavity: Measurement induced dephasing and number splitting
- Correlated Charge Noise and Relaxation Errors in Superconducting Qubits
- Quantum teleportation of light beams
- Fault-tolerant quantum computation with long-range correlated noise
- Selective quantum evolution of a qubit state due to continuous measurement
- Efficient learning of quantum noise
- Detecting crosstalk errors in quantum information processors
- Scaling of Dynamical Decoupling for Spin Qubits
- Fast quantum non-demolition readout from longitudinal qubit-oscillator interaction
- Fault-Tolerant Quantum Computation For Local Non-Markovian Noise
- Dynamical decoupling sequence construction as a filter-design problem
- Exact Results on Dynamical Decoupling by -Pulses in Quantum Information Processes
- Optomechanical position detection enhanced by de-amplification using intracavity squeezing
- Suppression of crosstalk in superconducting qubits using dynamical decoupling
- Experimental feedback control of quantum systems using weak measurements
- Gated conditional displacement readout of superconducting qubits
- Quantum-Limited Amplification via Reservoir Engineering
- Mid-circuit correction of correlated phase errors using an array of spectator qubits
- Using a qubit to measure photon number statistics of a driven, thermal oscillator
- Protected quantum computing: Interleaving gate operations with dynamical decoupling sequences
- Prediction and real-time compensation of qubit decoherence via machine-learning
- Squeezing at 946nm with periodically-poled KTiOPO_4
- Quantum Error Correction in Spatially Correlated Quantum Noise
- Non-reciprocal quantum interactions and devices via autonomous feed-forward
- Quantum control of atomic systems by time resolved homodyne detection and feedback
- Beating the standard sensitivity-bandwidth limit of cavity-enhanced interferometers with internal squeezed-light generation
- Precision spectroscopy with two correlated atoms
- Realizing a Circuit Analog of an Optomechanical System with Longitudinally Coupled Superconducting Resonators
- Interplay of driving and frequency noise in the spectra of vibrational systems
- Real-time calibration with spectator qubits
- Distinguishing between quantum and classical Markovian dephasing dissipation
- Demonstrating NISQ Era Challenges in Algorithm Design on IBM's 20 Qubit Quantum Computer
- Integration of spectator qubits into quantum computer architectures for hardware tuneup and calibration
- Fast flux control of 3D transmon qubits using a magnetic hose
- Impact of correlations and heavy-tails on quantum error correction
- Optimized mitigation of random-telegraph-noise dephasing by spectator-qubit sensing and control
- Machine learning for predictive estimation of qubit dynamics subject to dephasing
- Spectral effects of dispersive mode coupling in driven mesoscopic systems
- Effective qubit dephasing induced by spectator-qubit relaxation
- Autonomous adaptive noise characterization in quantum computers