Extending Qubit Coherence Time via Hybrid Dynamical Decoupling
arXiv:2601.08315 · doi:10.1103/rj8c-tv95
Abstract
Dynamical decoupling (DD) and bath engineering are two parallel techniques employed to mitigate qubit decoherence resulting from their unavoidable coupling to the environment. Here, we present a hybrid DD approach that integrates pulsed DD with bath spin polarization to enhance qubit coherence within the central spin model. This model, which can be realized using GaAs semiconductor quantum dots or analogous quantum simulators, demonstrates a significant extension of the central spin's coherence time by approximately 2 to 3 orders of magnitude that compared with the free-induced decay time, where the dominant contribution from DD and a moderate improvement from spin-bath polarization. This study, which integrates uniaxial dynamical decoupling and auxiliary bath-spin engineering, paves the way for prolonging coherence times in various practical quantum systems, including GaAs/AlGaAs, silicon and Si/SiGe. And this advancement holds substantial promise for applications in quantum information processing.
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References in corpus (87)
- Spins in few-electron quantum dots
- A >99.9%-fidelity quantum-dot spin qubit with coherence limited by charge noise
- A single-atom electron spin qubit in silicon
- Keeping a Quantum Bit Alive by Optimized -Pulse Sequences
- Electrically driven single electron spin resonance in a slanting Zeeman field
- Fault-Tolerant Quantum Dynamical Decoupling
- Demonstration of Entanglement of Electrostatically Coupled Singlet-Triplet Qubits
- Control and Detection of Singlet-Triplet Mixing in a Random Nuclear Field
- Triplet-Singlet Spin Relaxation via Nuclei in a Double Quantum Dot
- Fast universal quantum control above the fault-tolerance threshold in silicon
- A 10-qubit solid-state spin register with quantum memory up to one minute
- Phonon-induced decay of the electron spin in quantum dots
- Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics
- A four-qubit germanium quantum processor
- Extending Quantum Coherence in Diamond
- Relaxation, dephasing, and quantum control of electron spins in double quantum dots
- Two-qubit silicon quantum processor with operation fidelity exceeding 99%
- Optical pumping of electronic and nuclear spin in single charge-tunable quantum dots
- Theory of electron spin decoherence by interacting nuclear spins in a quantum dot
- Reduced sensitivity to charge noise in semiconductor spin qubits via symmetric operation
- Spin decoherence of a heavy hole coupled to nuclear spins in a quantum dot
- Robust dynamical decoupling for quantum computing and quantum memory
- Long-lived memory for mesoscopic quantum bits
- Nuclear spin induced oscillatory current in spin-blocked quantum dots
- Quantum theory for electron spin decoherence induced by nuclear spin dynamics in semiconductor quantum computer architectures: Spectral diffusion of localized electron spins in the nuclear solid-state environment
- Enhancing the Coherence of a Spin Qubit by Operating it as a Feedback Loop That Controls its Nuclear Spin Bath
- Suppressing Spin Qubit Dephasing by Nuclear State Preparation
- Digital quantum simulation of spin models with circuit quantum electrodynamics
- Deterministic entanglement generation from driving through quantum phase transitions
- A gated quantum dot far in the strong-coupling regime of cavity-QED at optical frequencies
- Robust Quantum State Transfer in Random Unpolarized Spin Chains
- Entanglement and control of single quantum memories in isotopically engineered silicon carbide
- Knight Field Enabled Nuclear Spin Polarization in Single Quantum Dots
- Hyperfine-mediated gate-driven electron spin resonance
- Quantum error correction with silicon spin qubits
- Optical pumping of quantum dot nuclear spins
- Review of performance metrics of spin qubits in gated semiconducting nanostructures
- Silicon quantum processor with robust long-distance qubit couplings
- Hole - Nuclear Spin Interaction in Quantum Dots
- An efficient scheme for numerical simulations of the spin-bath decoherence
- Locking of electron spin coherence over fifty milliseconds in natural silicon carbide
- Microwave-driven coherent operations of a semiconductor quantum dot charge qubit
- Locking electron spins into magnetic resonance by electron-nuclear feedback
- Beating the classical precision limit with spin-1 Dicke state of more than 10000 atoms
- Dynamic Nuclear Polarization with Single Electron Spins
- Nuclear Spin Switch in Semiconductor Quantum Dots
- Controlling a mesoscopic spin environment by quantum bit manipulation
- Universal gate operations on nuclear spin qubits in an optical tweezer array of Yb atoms
- Digital Quantum Simulation of Spin Systems in Superconducting Circuits
- Near-optimal dynamical decoupling of a qubit
- Analytical Solution of Electron Spin Decoherence Through Hyperfine Interaction in a Quantum Dot
- Notch filtering the nuclear environment of a spin qubit
- Concatenated Control Sequences based on Optimized Dynamic Decoupling
- Tunable Hybrid Qubit in a GaAs Double Quantum Dot
- Dynamic nuclear spin polarization in resonant laser spectroscopy of a quantum dot
- Hyperfine interaction induced decoherence of electron spins in quantum dots
- Reducing charge noise in quantum dots by using thin silicon quantum wells
- Phonon-mediated electron spin phase diffusion in a quantum dot
- Long-time electron spin storage via dynamical suppression of hyperfine-induced decoherence in a quantum dot
- Measurement of the spin temperature of optically cooled nuclei and GaAs hyperfine constants in GaAs/AlGaAs quantum dots
- Collective quantum memory activated by a driven central spin
- A logical qubit in a linear array of semiconductor quantum dots
- Spin noise in quantum dot ensembles
- Qubit protection in nuclear-spin quantum dot memories
- Faster State Preparation across Quantum Phase Transition Assisted by Reinforcement Learning
- Spin-noise in the anisotropic central spin model
- Nuclear Spins as Quantum Memory in Semiconductor Nanostructures
- Spin-flip Raman scattering of the -X mixed exciton in indirect band-gap (In,Al)As/AlAs quantum dots
- Enhanced spin coherence while displacing electron in a 2D array of quantum dots
- Enhancing quantum utility: simulating large-scale quantum spin chains on superconducting quantum computers
- Long-lived memory for electronic spin in a quantum dot: Numerical analysis
- Efficient generation of many-body entangled states by multilevel oscillations
- Spin rotation by resonant electric field in few-level quantum dots: Floquet dynamics and tunneling
- High-fidelity quantum memory utilizing inhomogeneous nuclear polarization in a quantum dot
- Uniaxial dynamical decoupling for an open quantum system
- Quantum simulation of the central spin model with a Rydberg atom and polar molecules in optical tweezers
- Nuclear Spin Noise in the Central Spin Model
- Quantum Zeno Manipulation of Quantum Dots
- Transforming pure and mixed states using an NMR quantum homogeniser
- Narrowing of the Overhauser field distribution by feedback-enhanced dynamic nuclear polarization
- Emergence of highly coherent quantum subsystems of a noisy and dense spin system
- Feedback control of nuclear hyperfine fields in double quantum dot
- Efficient Experimental Verification of Quantum Gates with Local Operations
- Single-shot readout of a solid-state spin in a decoherence-free subspace
- Inhomogeneous dynamic nuclear polarization and suppression of electron-polarization decay in a quantum dot
- Hyperfine-assisted decoherence of a phosphorus nuclear-spin qubit in silicon
- Noise-resistant quantum memory enabled by Hamiltonian engineering