Circuit-quantum electrodynamics with direct magnetic coupling to single-atom spin qubits in isotopically enriched 28Si

Abstract

Recent advances in silicon nanofabrication have allowed the manipulation of spin qubits that are extremely isolated from noise sources, being therefore the semiconductor equivalent of single atoms in vacuum. We investigate the possibility of directly coupling an electron spin qubit to a superconducting resonator magnetic vacuum field. By using resonators modified to increase the vacuum magnetic field at the qubit location, and isotopically purified 28Si substrates, it is possible to achieve coupling rates faster than the single spin dephasing. This opens up new avenues for circuit-quantum electrodynamics with spins, and provides a pathway for dispersive read-out of spin qubits via superconducting resonators.

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Cited by in corpus (25)

• Semiconductor Spin Qubits
• Coherent coupling of a single spin to microwave cavity photons
• Fast quantum non-demolition readout from longitudinal qubit-oscillator interaction
• Silicon quantum processor with robust long-distance qubit couplings
• Tunable magnon-magnon coupling in synthetic antiferromagnets
• Donor spins in silicon for quantum technologies
• Cavity QED with hybrid nanocircuits: from atomic-like physics to condensed matter phenomena
• Dispersive readout of valley splittings in cavity-coupled silicon quantum dots
• Strong coupling of microwave photons to antiferromagnetic fluctuations in an organic magnet
• Proposal for detection of a single electron spin in a microwave resonator
• Entangling distant resonant exchange qubits via circuit quantum electrodynamics
• Ultrastrong Magnon-Photon Coupling Achieved by Magnetic Films in Contact with Superconducting Resonators
• Coupling of three-spin qubits to their electric environment
• Nanometric constrictions in superconducting coplanar waveguide resonators
• Quantitative modeling of superconducting planar resonators with improved field homogeneity for electron spin resonance
• Roadmap on Atomic-scale Semiconductor Devices
• Robust electric dipole transition at microwave frequencies for nuclear spin qubits in silicon
• Transport of Spin Qubits with Donor Chains under Realistic Experimental Conditions
• Modulated longitudinal gates on encoded spin-qubits via curvature couplings to a superconducting cavity
• Nuclear spin readout in a cavity-coupled hybrid quantum dot-donor system
• Hamiltonian engineering for robust quantum state transfer and qubit readout in cavity QED
• Possible hundredfold enhancement in the direct magnetic coupling of a single atomic spin to a circuit resonator
• Solid-state magnetic traps and lattices
• Fusion for High-Dimensional Linear Optical Quantum Computing with Improved Success Probability
• Near-deterministic photon entanglement from a spin qudit in silicon using third quantisation