Counting defects with the two-point correlator
نویسندگان
چکیده
منابع مشابه
Two-photon spectroscopy of point defects
The experimental results on two-photon spectroscopy in impurities and defects in solids are reviewed. The main results are the measurement of absorption cross sections and in some cases the assignement of the symmetry of the transitions. Nonlinear effects can be of importance also in the process of colour centre formation in alkali halides crystals.
متن کاملSolutions of diffusion equation for point defects
An analytical solution of the equation describing diffusion of intrinsic point defects in semiconductor crystals has been obtained for a one-dimensional finite-length domain with the Robin-type boundary conditions. The distributions of point defects for different migration lengths of defects have been calculated. The exact analytical solution was used to verify the approximate numerical solutio...
متن کاملApproximate Counting with a Floating-Point Counter
Memory becomes a limiting factor in contemporary applications, such as analyses of the Webgraph and molecular sequences, when many objects need to be counted simultaneously. Robert Morris [Communications of the ACM, 21:840–842, 1978] proposed a probabilistic technique for approximate counting that is extremely space-efficient. The basic idea is to increment a counter containing the value X with...
متن کاملOn Fixed-Point Logic With Counting
One of the fundamental results of descriptive complexity theory, due to Immerman [12] and Vardi [17], says that a class of ordered finite structures is definable in fixed-point logic if, and only if, it is computable in polynomial time. Much effort has been spent on the problem of capturing polynomial time, that is, describing all polynomial time computable classes of not necessarily ordered fi...
متن کاملCounting the Hidden Defects in Software Documents
This chapter describes a novel application of machine learning to an important estimation problem in software engineering – estimating the number of hidden defects in software artifacts. The number of defects is a software metric that is indispensable for guiding decisions about the software quality assurance during development. In engineering processes, management usually demands that a certai...
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 High Energy Physics
سال: 2010
ISSN: 1029-8479
DOI: 10.1007/jhep08(2010)086