Some time ago, we found that the weak-field magnetoresistance in /)-type SnTe exhibits a peculiar symmetry which, moreover, lb ^ong function of both carrier density and temperature. ■ The main purpose of this paper is to describe a conceptually simple model which can account for this unusual behavior in a straightforward way. Section II is concerned with experimental details, and Sec. Ill prese...

Using data from the HST Medium Deep Survey, a long-term Key Project, together with generically similar archived data, we have discovered evidence for weak gravitational ‘shear’ of background field galaxies (I = 22 – 26) in the vicinity of isolated, foreground galaxies ( I = 15 – 22), especially those of early type. The statistical lensing is demonstrated by the slight preferential orientation o...

We are interested, with respect to the small parameter , in the behavior of solutions ρ of the conservative advection-diffusion equation ∂tρ + ∇x · (ρ u ) = η∆xρ , driven by a large velocity field, |u | = O(1/ ), which oscillates periodically with respect to time and space variables. The novelty of our approach compared to that of previous works is that we deal with the periodic case in its ful...

Scalars, such as Higgs and inflaton, play significant roles in both particle physics and cosmology. Recently, Vafa et.al. conjectured an upper bound on the strength of gravity relative to gauge forces in quantum gravity [4]. Their conjecture enriches the criteria of consistent effective field theory proposed in [2, 3]. These criteria help to constrain the string landscape [1] in the vast vacua ...

Blood pulse is an important human physiological signal commonly used for the understanding of the individual physical health. Current methods of non-invasive blood pulse sensing require direct contact or access to the human skin. As such, the performances of these devices tend to vary with time and are subjective to human body fluids (e.g. blood, perspiration and skin-oil) and environmental con...

The influence of the gravity acceleration on the regularized energy-momentum tensor of the quantized electromagnetic field between two plane parallel conducting plates is derived. We use Fermi coordinates and work to first order in the constant acceleration parameter. A new simple formula for the trace anomaly is found to first order in the constant acceleration, and a more systematic derivatio...