Two-Qubit Pulse Gate for the Three-Electron Double Quantum Dot Qubit

Understand

The three-electron configuration of gate-defined double quantum dots encodes a promising qubit for quantum information processing.

• I propose a two-qubit entangling gate using a pulse-gated manipulation procedure.
• The requirements for high-fidelity entangling operations are equivalent to the requirements for the pulse-gated single-qubit manipulations that have been successfully realized for Si QDs.
• This two-qubit gate completes the universal set of all-pulse-gated operations for the three-electron double-dot qubit and paves the way for a scalable setup to achieve quantum computation.