M. Hor-Meyll

TL;DR: It is shown that, even when the environment-induced decay of each system is asymptotic, quantum entanglement may suddenly disappear, this “sudden death” constitutes yet another distinct and counterintuitive trait of entangled systems.

TL;DR: In this paper, the dynamics of entanglement between a single qubit and its environment, as well as for pairs of qubits interacting independently with individual environments, using photons obtained from parametric down-conversion were investigated.

TL;DR: In this article, an inequality criterion for the nonseparability of the spin-orbit degrees of freedom of a laser beam is proposed, and the inequality is discussed in both the classical and quantum domains.

TL;DR: This work provides a formalization of the concept of emergence of a pointer basis in an apparatus subject to decoherence, and shows the contrast of the pointer basis emergence to the quantum to classical transition, demonstrated in an experiment with polarization entangled photon pairs.

TL;DR: In this paper, an all-optical setup, which couples different degrees of freedom of a single photon, is proposed to investigate entanglement generation by a common environment, where the two qubits are represented by the photon polarization and Hermite-Gauss transverse modes, while the environment corresponds to the photon path.