@article {330,
	title = {Entanglement-fluctuation relation for bipartite pure states},
	journal = {Phys. Rev. A},
	volume = {94},
	year = {2016},
	pages = {022323},
	abstract = {We identify subsystem fluctuations (variances) that measure entanglement in an arbitrary bipartite pure state. These fluctuations are of observables that generalize the notion of polarization to an arbitrary N-level subsystem. We express this polarization fluctuation in terms of subsystem purity and other entanglement measures. The derived entanglement-fluctuation relation is evaluated for the ground states of a one-dimensional free-fermion gas and the Affleck-Kennedy-Lieb-Tasaki spin chain. Our results provide a framework for experimentally measuring entanglement using Stern-Gerlach{\textendash}type state selectors.},
	doi = {10.1103/PhysRevA.94.022323},
	url = {http://link.aps.org/doi/10.1103/PhysRevA.94.022323},
	author = {Aura Mae B Villaruel and Francis N. C. Paraan}
}