1,721,114 research outputs found
Continuous variable tangle, monogamy inequality, and entanglement sharing in Gaussian states of continuous variable systems
Full text linkGenuine multipartite entanglement of symmetric Gaussian states: Strong monogamy, unitary localization, scaling behavior, and molecular sharing structure
Full text link
Gaussian measures of entanglement versus negativities: Ordering of two-mode Gaussian states
Full text link
Correlation loss and multipartite entanglement across a black hole horizon
No full textWe investigate the Hawking effect on entangled fields. By considering a scalar field which is in a two-mode squeezed state from the point of view of freely falling (Kruskal) observers crossing the horizon of a Schwarzschild black hole, we study the degradation of quantum and classical correlations in the state from the perspective of Schwarzschild observers confined outside the horizon. Due to monogamy constraints on the entanglement distribution, we show that the lost bipartite entanglement is recovered as multipartite entanglement among modes inside and outside the horizon. In the limit of a small-mass black hole, no bipartite entanglement is detected outside the horizon, while the genuine multipartite entanglement interlinking the inner and outer regions grows infinitely.</p
- …
