The Multipole Expansion of Radiation Fields
نویسندگان
چکیده
منابع مشابه
Rules for minimal atomic multipole expansion of molecular fields.
A nonempirical minimal atomic multipole expansion (MAME) defines atomic charges or higher multipoles that reproduce electrostatic potential outside molecules. MAME eliminates problems associated with redundancy and with statistical sampling, and produces atomic multipoles in line with chemical intuition.
متن کاملcontrol of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولError Minimization of Multipole Expansion
In this paper, we focus on the truncation error of the multipole expansion for the fast multipole method and the multilevel fast multipole algorithm. When the buffer size is large enough, the error can be controlled and minimized by using the conventional selection rules. On the other hand, if the buffer size is small, the conventional selection rules no longer hold, and the new approach which ...
متن کاملMultipole Expansion in Quantum Chromodynamics
A generalized formalism of QCD multipole expansion including constituent quark field quantization is proposed. It can be applied to study soft-gluon emission processes of heavy quark-antiquark systems with quark flavor changing or quark pair annihilation. As an application, the radiative decays J/t+h + 7 + 77 and J/t) --t 7+7r” are studied in this framework. It is shown that J/$ + 7+~ is domina...
متن کاملSimultaneous suppression of disturbing fields and localization of magnetic markers by means of multipole expansion
BACKGROUND: Magnetically marked capsules serve for the analysis of peristalsis and throughput times within the intestinal tract. Moreover, they can be used for the targeted disposal of drugs. The capsules get localized in time by field measurements with a superconducting quantum interference device (SQUID) magnetometer array. Here it is important to ensure an online localization with high speed...
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: Indiana University Mathematics Journal
سال: 1954
ISSN: 0022-2518
DOI: 10.1512/iumj.1954.3.53026