Preserving entanglement and nonlocality in solid-state qubits by dynamical decoupling
Preserving entanglement and nonlocality in solid-state qubits by dynamical decoupling
In this paper, we study how to preserve entanglement and nonlocality under dephasing produced by classical noise with large low-frequency components, such as $1/f$ noise, using dynamical decoupling techniques. We first show that quantifiers of entanglement and nonlocality satisfy a closed relation valid for two independent qubits locally coupled to …