Relaxation of a Stationary State on a Quantum Computer Yields Unique Spectroscopic Fingerprint of the Computer's Noise
arXiv:2104.14552 · doi:10.1038/s42005-022-00803-8
Abstract
Quantum computing has the potential to revolutionize computing for certain classes of problems with exponential scaling, and yet this potential is accompanied by significant sensitivity to noise, requiring sophisticated error correction and mitigation strategies. Here we simulate the relaxations of stationary states at different frequencies on several quantum computers to obtain unique spectroscopic fingerprints of their noise. Response functions generated from the data reveal a clear signature of non-Markovian dynamics, demonstrating that each of the quantum computers acts as a non-Markovian bath with a unique colored noise profile. The study suggest that noisy intermediate-scale quantum computers (NISQ) provide a built-in noisy bath that can be analyzed from their simulation of closed quantum systems with the results potentially being harnessed for error mitigation or open-system simulation.
References in corpus (40)
- Charge insensitive qubit design derived from the Cooper pair box
- Hardware-efficient Variational Quantum Eigensolver for Small Molecules and Quantum Magnets
- A Quantum Engineer's Guide to Superconducting Qubits
- Introduction to Quantum Noise, Measurement and Amplification
- Quantum computational chemistry
- Randomized Benchmarking of Quantum Gates
- Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
- Extending the computational reach of a noisy superconducting quantum processor
- A quantum algorithm providing exponential speed increase for finding eigenvalues and eigenvectors
- Decoherence in a superconducting quantum bit circuit
- Hybrid quantum-classical algorithms and quantum error mitigation
- A simple all-microwave entangling gate for fixed-frequency superconducting qubits
- Quantum Process Tomography: Resource Analysis of Different Strategies
- Fluctuations of Energy-Relaxation Times in Superconducting Qubits
- Error-mitigated digital quantum simulation
- Variational quantum simulation of general processes
- Gate Set Tomography
- A quantum algorithm for evolving open quantum dynamics on quantum computing devices
- Digital quantum simulation of open quantum systems using quantum imaginary time evolution
- Rotating-frame relaxation as a noise spectrum analyzer of a superconducting qubit undergoing driven evolution
- Qubit noise spectroscopy for non-Gaussian dephasing environments
- Demonstration of non-Markovian process characterisation and control on a quantum processor
- Quantum Solver of Contracted Eigenvalue Equations for Scalable Molecular Simulations on Quantum Computing Devices
- Quantum algorithm for simulating the dynamics of an open quantum system
- Universal simulation of Markovian quantum dynamics
- Qiskit Backend Specifications for OpenQASM and OpenPulse Experiments
- Flux qubit noise spectroscopy using Rabi oscillations under strong driving conditions
- Robust, self-consistent, closed-form tomography of quantum logic gates on a trapped ion qubit
- A general quantum algorithm for open quantum dynamics demonstrated with the Fenna-Matthews-Olson complex
- Capturing Non-Markovian Dynamics on Near-Term Quantum Computers
- Universal simulation of Markovian open quantum systems
- Quantum-classical hybrid algorithm using an error-mitigating -representability condition to compute the Mott metal-insulator transition
- Direct Characterization of Quantum Dynamics: General Theory
- Scheme for direct measurement of a general two-qubit Hamiltonian
- Preparation of an Exciton Condensate of Photons on a 53-Qubit Quantum Computer
- Why Study Noise due to Two Level Systems: A Suggestion for Experimentalists
- Direct Estimation of Single- and Two-Qubit Hamiltonians and Relaxation Rates
- Learning Non-Markovian Quantum Noise from Moiré-Enhanced Swap Spectroscopy with Deep Evolutionary Algorithm
- Quantify the Non-Markovian Process with Intervening Projections in a Superconducting Processor
- Simulation of Thermal Relaxation in Spin Chemistry Systems on a Quantum Computer Using Inherent Qubit Decoherence