Xiao Xue

TU Delft
Title of Poster
Coherent interface between distant spin qubits
Abstract Regular

Coherent coupling between distant electron spins is of great importance in large scale quantum computation with spin qubits in quantum dots. A promising approach to achieve this is using an on-chip high-impedance superconducting resonator. Here, we present a coherent spin-spin interface enabled by virtual photons in the resonator, which is a crucial ingredient for distant high-fidelity two-qubit gates. Moreover, we improve the readout signal from the resonator and therefore the dispersive sensing by integrating a travelling-wave parametric amplifier (TWPA). These results pave the way towards demonstrating a two-qubit iSWAP gate between remote spin qubits. 

Poster Session