Electrically-protected resonant exchange qubits in triple quantum dots

Abstract

We present a modulated microwave approach for quantum computing with qubits comprising three spins in a triple quantum dot. This approach includes single- and two-qubit gates that are protected against low-frequency electrical noise, due to an operating point with a narrowband response to high frequency electric fields. Furthermore, existing double quantum dot advances, including robust preparation and measurement via spin-to-charge conversion, are immediately applicable to the new qubit. Finally, the electric dipole terms implicit in the high frequency coupling enable strong coupling with superconducting microwave resonators, leading to more robust two-qubit gates.

5 pages, 2 figures

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Cited by in corpus (80)

• Semiconductor Spin Qubits
• Reduced sensitivity to charge noise in semiconductor spin qubits via symmetric operation
• Coherent spin-qubit photon coupling
• The Resonant Exchange Qubit
• Superconductor-semiconductor hybrid cavity quantum electrodynamics
• Semiconductor Quantum Computation
• Nanomaterials for Quantum Information Science and Engineering
• Input-output theory for spin-photon coupling in Si double quantum dots
• Three-electron spin qubits
• Circuit Quantum Electrodynamics Architecture for Gate-Defined Quantum Dots in Silicon
• Extending the coherence of a quantum dot hybrid qubit
• Charge-noise-insensitive gate operations for always-on, exchange-only qubits
• Entangling distant resonant exchange qubits via circuit quantum electrodynamics
• A decoherence-free subspace in a charge quadrupole qubit
• Coherent long-distance spin-qubit-transmon coupling
• Charge-insensitive single-atom spin-orbit qubit in silicon
• Tunable Spin Qubit Coupling Mediated by a Multi-Electron Quantum Dot
• Coupling of three-spin qubits to their electric environment
• Exchange-based two-qubit gate for singlet-triplet qubits
• Symmetric Operation of the Resonant Exchange Qubit
• Negative spin exchange in a multielectron quantum dot
• Single, double, and triple quantum dots in Ge/Si nanowires
• The asymmetric resonant exchange qubit under the influence of electrical noise
• Tunable coupling and isolation of single electrons in silicon metal-oxide-semiconductor quantum dots
• Quantum Computing with Acceptor Spins in Silicon
• A quadrupolar exchange-only spin qubit
• Spin of a multielectron quantum dot and its interaction with a neighboring electron
• Long distance coupling of resonant exchange qubits
• Characterizing gate operations near the sweet spot of an exchange-only qubit
• The exchange-only singlet-only spin qubit
• Two-body Wigner molecularization in asymmetric quantum dot spin qubits
• Quantum-limited measurement of spin qubits via curvature coupling to a cavity
• Decoherence of an exchange qubit by hyperfine interaction
• Robust Two-Qubit Gates for Exchange-Coupled Qubits
• Spin blockade and coherent dynamics of high-spin states in a three-electron double quantum dot
• Adiabatic two-qubit gates in capacitively coupled quantum dot hybrid qubits
• Resonant Exchange Operation in Triple-Quantum-Dot Qubits for Spin-Photon Transduction
• Signatures of atomic-scale structure in the energy dispersion and coherence of a Si quantum-dot qubit
• Non-Gaussian signatures and collective effects in charge noise affecting a dynamically-decoupled qubit
• Fast control of semiconductor qubits beyond the rotating-wave approximation
• Modulated longitudinal gates on encoded spin-qubits via curvature couplings to a superconducting cavity
• Highly tunable exchange-only singlet-only qubit in a GaAs triple quantum dot
• Exact CNOT Gates with a Single Nonlocal Rotation for Quantum-Dot Qubits
• Cavity-mediated entanglement of parametrically driven spin qubits via sidebands
• Theory of barrier vs tilt exchange gate operations in spin-based quantum computing
• Analytic Pulse Sequence Construction for Exchange-Only Quantum Computation
• Leakage and sweet spots in triple-quantum-dot spin qubits: A molecular-orbital study
• Low-Error Operation of Spin Qubits with Superexchange Coupling
• A Simple Derivation of the Fong-Wandzura Pulse Sequence
• Inverted Singlet-Triplet Qubit Coded on a Two-Electron Double Quantum Dot
• Characterisation of an exchange-based two-qubit gate for resonant exchange qubits
• Generation of Schrödinger cat states through photon-assisted Landau-Zener-Stückelberg interferometry
• Driven nonlinear dynamics of two coupled exchange-only qubits
• Dynamically Generated Decoherence-Free Subspaces and Subsystems on Superconducting Qubits
• Theory of valley-resolved spectroscopy of a Si triple quantum dot coupled to a microwave resonator
• Simple operation sequences to couple and interchange quantum information between spin qubits of different kinds
• Democratizing Spin Qubits
• Line Shapes of Electric Dipole Spin Resonance in Pauli Spin Blockade
• Benchmarking of dynamically corrected gates for the exchange-only spin qubit in $1/f$ noise environment
• Fast high-fidelity geometric gates for singlet-triplet qubits
• Magnetic Kondo regimes in a frustrated half-filled trimer
• Efficient Two-Qubit Pulse Sequences Beyond CNOT
• Charge noise suppression in capacitively coupled singlet-triplet spin qubits under magnetic field
• Charge states, triple points and quadruple points in an InAs nanowire triple quantum dot revealed by an integrated charge sensor
• Energy spectra of three electrons in SiGe/Si/SiGe laterally coupled triple quantum dots
• Dynamical second-order noise sweetspots in resonantly driven spin qubits
• High-fidelity two-qubit gates via dynamical decoupling of local 1/f noise at optimal point
• Optimizing electrically controlled echo sequences for the exchange-only qubit
• Leakage and dephasing in ${}^{28}$Si-based exchange-only spin qubits
• Two-qubit logical operations in three quantum dots system
• Pauli Spin Blockade in a Resonant Triple Quantum Dot Molecule
• Proposal for a cavity-induced measurement of the exchange coupling in quantum dots
• Universal control of superexchange in linear triple quantum dots with an empty mediator
• Two-qubit sweet spots for capacitively coupled exchange-only spin qubits
• Sign-switching of superexchange mediated by few electrons under non-uniform magnetic field
• Fast optical control of a coded qubit in a triple quantum dot
• Circular-polarization sensitive metamaterial based on triple quantum-dot molecules
• Transport-induced suppression of nuclear field fluctuations in multi-quantum-dot systems
• Jenga-Krotov algorithm: Efficient compilation of multi-qubit gates for exchange-only qubits
• Out-of-Time-Order-Correlation in perturbed quantum wells