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…
Harnessing quantum entanglement and heat current of a non-equilibrium spin system at high temperatures
We now present numerical results for the dynamics of entanglement and heat current between the qubits for various…
Quantum breakthrough reveals new type of entanglement after 20 years
Quantum entanglement is one of the most puzzling and powerful concepts of quantum physics. It happens when two…
Non-Markovian quantum exceptional points | Nature Communications
General framework for non-Markovian exceptional points In this section, we present a general approach to characterize EPs for…
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…
AI found a new way to create quantum entanglement
AI found a new way to entangle particles of light luchschenF/Shutterstock Quantum entanglement just got easier, thanks to…
Precise shape of single photon unveiled by scientists
A new theory, that explains how light and matter interact at the quantum level has enabled researchers to…
Quantum Breakthrough Observed as Scientists Define Photon Shape for the First Time
A study conducted at the University of Birmingham has identified the precise shape of a single photon, reshaping…
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…