Spin environment of a superconducting qubit in high magnetic fields
In Fig. 1 we present the field resilient gralmonium qubit, fabricated from a single layer of grAl (cf. Fig. 1a),…
Google Achieves Another Breakthrough in Quantum Computing: Nearly 13,000 Times Faster
Google CEO Sundar Pichai officially announced the latest progress of his team’s quantum algorithm implementation on the Willow…
Universal quantum gate set for Gottesman–Kitaev–Preskill logical qubits
GKP code Here we give some background on GKP codes, highlighting some of the more salient features in…
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…
Quantum features of gravcats | Scientific Reports
In this section, we delve into the gravcat model using quantum resources to explore its properties with and…
Entanglement Rényi negativity of interacting fermions from quantum Monte Carlo simulations
Partially transposed density matrix integrated to DQMC framework Various definitions of negativity in the literature share a common…
A many-body quantum register for a spin qubit
Briegel, H.-J., Dür, W., Cirac, J. I. & Zoller, P. Quantum repeaters: the role of imperfect local operations…
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…
China physics prodigy part of Swiss quantum team’s mechanical qubit breakthrough
Researchers in Switzerland, led by China-born physicist Chu Yiwen and her PhD student Yang Yu, have developed the…
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…