Christmas Is All About Receiving

Luke 2:10-11

From print to \u27image media\u27: Neil Postman\u27s The disappearance of childhood

Reviewed Book: Postman, Neil. The Disappearance of Childhood. New York: Dell, 1982

Did you have a good Christmas

Luke 2:29-3

Theory of optical spectral weights in Mott insulators with orbital degrees of freedom

Introducing partial sum rules for the optical multiplet transitions, we outline a unified approach to magnetic and optical properties of strongly correlated transition metal oxides. On the example of LaVO$_3$ we demonstrate how the temperature and polarization dependences of different components of the optical multiplet are determined by the underlying spin and orbital correlations dictated by the low-energy superexchange Hamiltonian. Thereby the optical data provides deep insight into the complex spin-orbital physics and the role played by orbital fluctuations.Comment: 6 pages, 3 figures, expanded versio