Decoherence induced by anisotropic hyperfine interaction in Si spin qubits

Abstract

We study Si:P donor electron spin decoherence due to anisotropic hyperfine (AHF) interaction with the surrounding nuclear spin bath. In particular, we clarify the electron spin echo envelope modulation (ESEEM) in the Si:P system and the resonancelike contributions from nuclear spins in various shells away from the P atoms. We suggest an approach to minimize AHF-induced decoherence by avoiding the resonances and orienting an applied magnetic field along directions that can periodically eliminate contributions from the dominant nearest neighbor atoms. Our remarkable agreement with experiment demonstrates nearly complete understanding of electron spin decoherence in Si:P when combining ESEEM, spectral diffusion, instantaneous diffusion, and spin-lattice relaxation.

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Cited by in corpus (43)

• Silicon Quantum Electronics
• Semiconductor Spin Qubits
• Semiconductor Qubits In Practice
• Electron Spin Dephasing due to Hyperfine Interactions with a Nuclear Spin Bath
• Pure quantum dephasing of a solid state electron spin qubit in a large nuclear spin bath coupled by long-range hyperfine-mediated interactions
• Electron spin decoherence in isotope-enriched silicon
• Quantum many-body theory for electron spin decoherence in nanoscale nuclear spin baths
• Nuclear Spins in Nanostructures
• Universal pulse sequence to minimize spin dephasing in the central spin decoherence problem
• Hyperfine interactions in silicon quantum dots
• Quantum Decoherence of the Central Spin in a Sparse System of Dipolar Coupled Spins
• Valley-based noise-resistant quantum computation using Si quantum dots
• Line Broadening and Decoherence of Electron Spins in Phosphorus-Doped Silicon Due to Environmental 29^Si Nuclear Spins
• Quantum dot spin qubits in Silicon: Multivalley physics
• Free-induction decay and envelope modulations in a narrowed nuclear spin bath
• Long-time electron spin storage via dynamical suppression of hyperfine-induced decoherence in a quantum dot
• Realizing singlet-triplet qubits in multivalley Si quantum dots
• Converting a real quantum bath to an effective classical noise
• Effect of pulse error accumulation on dynamical decoupling of the electron spins of phosphorus donors in silicon
• Dephasing of electron spin qubits due to their interaction with nuclei in quantum dots
• Quantum Computing with Acceptor Spins in Silicon
• Controllable freezing of the nuclear spin bath in a single-atom spin qubit
• Wavefunction considerations for the central spin decoherence problem in a nuclear spin bath
• Two-spin dephasing by electron-phonon interaction in semiconductor double quantum dots
• Dephasing of Si singlet-triplet qubits due to charge and spin defects
• Spin echo decay at low magnetic fields in a nuclear spin bath
• General theory of feedback control of a nuclear spin ensemble in quantum dots
• Optimized pulses for the control of uncertain qubits
• Hyperfine interaction induced dephasing of coupled spin qubits in semiconductor double quantum dots
• Spin decoherence in graphene quantum dots due to hyperfine interaction
• Coherent electrical rotations of valley states in Si quantum dots using the phase of the valley-orbit coupling
• Hyperfine spectroscopy in a quantum-limited spectrometer
• SiGe/Si quantum dot electron spin decoherence dependence on ${}^{73}$Ge
• Mapping donor electron wave function deformations at sub-Bohr orbit resolution
• Coulomb interaction and valley-orbit coupling in Si quantum dots
• Enhanced hyperfine-induced spin dephasing in a magnetic-field gradient
• Hole-Spin-Echo Envelope Modulations
• Characterization of a quasi-static environment with a qubit
• Maximizing the purity of a qubit evolving in an anisotropic environment
• Acceptor-based qubit in silicon with tunable strain
• Optimisation of electrically-driven multi-donor quantum dot qubits
• Isotope engineering of silicon and diamond for quantum computing and sensing applications
• Erbium implanted silicon for solid-state quantum technologies