There are many reasons to believe the present mass density of the universe is dominated by a weakly interacting massive particle (wimp), a fossil relic of the early universe. Theoretical ideas and experimental efforts have focused mostly on production and detection of thermal relics, with mass typically in the range a few GeV to a hundred GeV. Here, I will review scenarios for production of non...

After confirmation of the presence of a nonthermal hard X-ray excess with respect to the thermal emission in the Coma cluster from two independent observations, obtained using the Phoswich Detection System onboard BeppoSAX , we present in this Letter also for Abell 2256 the results of two observations performed with a time interval of about 2.5 yr. In both spectra a non thermal excess is presen...

The transition between ergodic and many-body localization (MBL) phases lies at the heart of understanding quantum thermalization systems. Here, we predict a critical (MBC) phase with finite-size scaling analysis in one-dimensional extended Aubry-Andr\'e-Harper-Hubbard model, which is different from both MBL phase, implying that system hosts three fundamental thermodynamic limit. level statistic...

We present direct measurements of fluctuations in the nucleus of yeast cells. While prior work has shown these fluctuations to be active and non-thermal in character, their origin and time dependence are not understood. We show that the nuclear fluctuations we observe are quantitatively consistent with uncorrelated, active force fluctuations driving a nuclear medium that is dominated by an unco...

During preheating after inflation, parametric resonance rapidly generates very large fluctuations of scalar fields. In models where the inflaton field φ oscillates in a double-well potential and interacts with another scalar field X, fluctuations of X can keep the φ→ −φ symmetry temporarily restored. If the coupling of φ to X is much stronger than the inflaton self-coupling, the subsequent symm...