Longitudinal coupling between electrically driven spin-qubits and a resonator
arXiv:2301.10163 · doi:10.1103/PhysRevB.109.155304
Abstract
At the core of the success of semiconducting spin qubits is the ability to manipulate them electrically, enabled by the spin-orbit interactions. However, most implementations require external magnetic fields to define the spin qubit, which in turn activate various charge-noise mechanisms. Here we study spin qubits confined in quantum dots at zero magnetic fields that are driven periodically by electrical fields and are coupled to a microwave resonator. Using Floquet theory, we identify a well-defined Floquet spin-qubit originating from the lowest degenerate spin states in the absence of driving. We find both transverse and longitudinal couplings between the Floquet spin qubit and the resonator, which can be selectively activated by modifying the driving frequency. We show how these couplings can facilitate fast qubit readout and the implementation of a two-qubit CPHASE gate. Finally, we use adiabatic perturbation theory to demonstrate that the spin-photon couplings originate from the non-Abelian geometry of states endowed by the spin-orbit interactions, rendering these findings general and applicable to a wide range of solid-state spin qubits.
References in corpus (25)
- Coherent control of a single electron spin with electric fields
- Semiconductor Spin Qubits
- Circuit Quantum Electrodynamics with a Spin Qubit
- Prospects for Spin-Based Quantum Computing
- Dispersive regime of circuit QED: photon-dependent qubit dephasing and relaxation rates
- Scalable gate architecture for densely packed semiconductor spin qubits
- Spin dynamics in InAs-nanowire quantum-dots coupled to a transmission line
- Rapid high-fidelity gate-based spin read-out in silicon
- Robust two-qubit gates in a linear ion crystal using a frequency-modulated driving force
- Ion trap quantum gates with amplitude-modulated laser beams
- Roadmap on quantum nanotechnologies
- Strong coupling between a photon and a hole spin in silicon
- A single hole spin with enhanced coherence in natural silicon
- Hole spin qubits in Si FinFETs with fully tunable spin-orbit coupling and sweet spots for charge noise
- Recent advances in hole-spin qubits
- Geometrical spin dephasing in quantum dots
- Programmable Heisenberg interactions between Floquet qubits
- Fully tunable longitudinal spin-photon interactions in Si and Ge quantum dots
- Geometric phases in semiconductor spin qubits: Manipulations and decoherence
- Tunable hole spin-photon interaction based on g-matrix modulation
- Qubit interference at avoided crossings: The role of driving shape and bath coupling
- Robustness against parametric noise of non ideal holonomic gates
- Dispersive readout of adiabatic phases
- Charge-noise induced dephasing in silicon hole-spin qubits
- Probing the Jaynes-Cummings Ladder with Spin Circuit Quantum Electrodynamics