Low lying spectral gaps induced by slowly varying magnetic fields
نویسندگان
چکیده
منابع مشابه
Spectral Gaps for Periodic Schrödinger Operators with Strong Magnetic Fields
We consider Schrödinger operators H = (ih d + A)∗(ih d + A) with the periodic magnetic field B = dA on covering spaces of compact manifolds. Under some assumptions on B, we prove that there are arbitrarily large number of gaps in the spectrum of these operators in the semiclassical limit of strong magnetic field h → 0.
متن کاملLow frequency magnetic fields in cars, induced by tire magnetisation
Alternating magnetic fields have been measured in a variety of different cars, the dominant contribution being from magnetized tires. Magnetic field strengths have been measured as a function of frequency directly at the tires and at different positions in rolling cars. Measurements at the tires showed field strengths up to 100 microTesla. In the interior of rolling cars, close to the wheels at...
متن کاملThe modeling of induced current density in eyes from static magnetic fields produce by MR scanner
Introduction: Staff and patient Movement in static magnetic field MRI scanner induces current density in the human tissues, so cause biologic effects in people. The aim of this study was the Modelling of current density induced by moving individual with different velocities in static magnetic field of magnetic resonance imaging. Materials and Methods: current ...
متن کاملVery Slowly Varying Functions
A real-valued function f of a real variable is said to be (p-slowly varying ((p-s .v.) if limn_ . rp (x) [ f (x + a) f (x)] = 0 for each a. It is said to be uniformly 9-slowly varying (u . (P-s .v .) if limn-. . sup, e r rp(x) ; f (x-a) f (x)I =0 for every bounded interval I. It is supposed throughout that rp is positive and increasing . It is proved that if w increases rapidly enough, then eve...
متن کاملCMB polarization induced by stochastic magnetic fields
The complete calculation of the CMB polarization observables (i.e. Eand B-modes) is reported within the conventional ΛCDM paradigm supplemented by a stochastic magnetic field. Intriguing perspectives for present and forthcoming CMB polarization experiments are outlined. Large-scale magnetism recently became an intriguing triple point where cosmology, astronomy and high-energy astrophysics meet ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Functional Analysis
سال: 2017
ISSN: 0022-1236
DOI: 10.1016/j.jfa.2017.04.002