نتایج جستجو برای: charge pump cp
تعداد نتایج: 235272 فیلتر نتایج به سال:
As one of the major renewable energy sources, solar energy has the potential to become an essential component of future global energy production. With the increasing demand in energy, the harvesting of solar energy using inexpensive materials and manufacturing methods has attracted considerable attention. Organic/ inorganic (i.e., conjugated polymer/nanocrystal (CP/NC)) nanohybrid solar cell, i...
There is a long standing challenge in lattice QCD concerning the relationship between CPsymmetry and lattice chiral symmetry: naïvely the chiral symmetry transformations are not invariant under CP . With results similar to a recent work by Igarashi and Pawlowski, I show that this is because charge conjugation symmetry has been incorrectly realised on the lattice. The naive approach, to directly...
B factories measure the CP violation parameter of BB̄ mixing and decay. Hadron colliders measure the dimuon charge asymmetry of an admixture of B hadrons. In this note we discuss a subtle point on how the CP violation parameter of B s B̄ 0 s mixing and decay can be extracted from these measurements.
In this article we extend the construction of giant gravitons from holomorphic surfaces [1] to the ABJM correspondence. We construct a new class of 1 6 -BPS M5-branes wrapping 5-manifolds in S/Zk and supported by a large angular momentum in the orbifold space. These orbifold giant gravitons undergo a supersymmetry enhancement to 1 3 -BPS and 1 2 -BPS configurations in special cases. The compact...
A New electrical method, using charge-pumping (CP) technique under bias thermal stress (BTS), has been described in this paper. This technique is based on the charge-pumping measurement which in turn used to extract the flat-band voltage before and after an applied bias voltage at high temperature. The obtained flat band voltage shift, that is due to redistribution of the mobile ionic charges, ...
We demonstrate the operation of a quantum spin pump based on cyclic radio-frequency excitation of a GaAs quantum dot, including the ability to pump pure spin without pumping charge. The device takes advantage of bidirectional mesoscopic fluctuations of pumped current, made spin dependent by the application of an in-plane Zeeman field. Spin currents are measured by placing the pump in a focusing...
We study the CP-violating bubble wall by solving the coupled equations of motion derived from the two-Higgs-doublet model for the moduli ρ i and phases θ i of the two scalars (i = 1, 2) at the transition temperature. We find a solution that the CP-violating phase θ ≡ θ 1 − θ 2 connecting the CP-conserving vacua strongly violates CP in the intermediate region while the moduli largely deviate fro...
Ultrafast electron transfer in dissociating iodomethane and fluoromethane molecules was studied at the Linac Coherent Light Source free-electron laser using an ultraviolet-pump, X-ray-probe scheme. The results for both molecules are discussed with respect to the nature of their UV excitation and different chemical properties. Signatures of long-distance intramolecular charge transfer are observ...
We prove an approximate equality, to leading order in dominant terms, between CP-violating rate differences in B/B 0 → Kπ and B → Kπ. We propose several versions of averaged asymmetry measurements in these two processes, for which present data are already capable of yielding a statistically significant nonzero result in the most favorable case of weak and strong phases. PACS codes: 12.15.Hh, 12...
Stimulated scattering induced by the longitudinal electric field of a pump wave is studied theoretically for the case of dense, relativistic electron beams traveling in cylindrical metal waveguides, Two processes are examined. In one, the pump wave decays parametrically into a slow and a fast space charge wave. In the other, it decays into a slow space charge wave and a TM wave of the guide. Th...
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