Paweł Kurzyński

Gaussian state entanglement witnessing through lossy compression

2021 · Physical Review A

We study the possibility of witnessing Gaussian entanglement between two continuous-variable systems with the help of two spatially separated qubits. Its key ingredient is a local lossy state transfer from the original systems onto local …

Simulations of quantum nonlocality with local negative bits

2021 · arXiv (Cornell University)

We propose a simple simulation of nonlocal quantum correlations among $N$ qubits using a local hidden variable source with a positive probability distribution, given that each the $N$ observers has access to a local negative …