Minimal state-preparation times for silicon spin qubits
Silicon quantum-processor model We use a Heisenberg spin-chain model21,43 to describe a typical 1D chain of spin qubits…
Concatenate codes, save qubits | npj Quantum Information
In Methods, after summarizing the notations, we first describe the error model used in the numerical simulation and…
Gate modulation of the hole singlet-triplet qubit frequency in germanium
Singlet-triplet evolution in a DQD A scanning electron microscope image of the device studied is shown in Fig.…
Noise-agnostic quantum error mitigation with data augmented neural models
The DAEM model Let us start by specifying our error mitigation framework. We consider a target quantum process…
Simulating non-completely positive actions via exponentiation of Hermitian-preserving maps
Hermitian-preserving map exponentiation The circuit of HME is sketched in Fig. 1c. To implement the evolution of \({e}^{-i{\mathcal{N}}(\rho…
Guarantees on the structure of experimental quantum networks
Necessary constraints on quantum network correlations Characterizing the correlations that are generated in network scenarios is a notably…