Wittgenstein on Life, Art, and the "Right Perspective"

Dedicato a una lunga osservazione contenuta nelle "Vermischte Bemerkungen", il saggio mostra come Wittgenstein attribuisca all'arte un potere di trasformazione dell'ordinario e propone un confronto tra la concezione desumibile dall'osservazione wittgensteiniana e l'interpretazione hegeliana della pittura olandese

Charge asymmetry and symmetry properties

Applying general symmetry properties of electromagnetic interaction, information from electron proton elastic scattering data can be related to charge asymmetry in the annihilation channels $e^++e^-\leftrightarrow \bar p + p$ and to the ratio of the cross section of elastic electron and positron scattering on the proton. A compared analysis of the existing data allows to draw conclusions on the reaction mechanism.Comment: Contribution to XIII Workshop On High Energy Spin Physics (DSPIN), Dubna, Russia September 1 - 5, 2009 8 pages 3 figure

Algebraic Many-Body Localization and its implications on information propagation

We probe the existence of a many-body localized phase (MBL-phase) in a spinless fermionic Hubbard chain with algebraically localized single-particle states, by investigating both static and dynamical properties of the system. This MBL-phase can be characterized by an extensive number of integrals of motion which develop algebraically decaying tails, unlike the case of exponentially localized single-particle states. We focus on the implications for the quantum information propagation through the system. We provide evidence that the bipartite entanglement entropy after a quantum quench has an unbounded algebraic growth in time, while the quantum Fisher information grows logarithmically