Finite amplitudes helical waves on the surface of the conducting fluid earth core as an example of the self-exciting homopolar heterogeneous dynamo

International audienceHelical waves of the finite amplitude on a surface of the fluid conducting Earth core are examined for generation of the magnetic field. Estimates are made for the differentially rotating cylindrical conducting fluid body, with the helical surface wave structure on its top. This structure is similar to the self-exciting Faraday-disk homopolar heterogeneous dynamo. Estimations of angular velocity and magnetic field magnitude for a polar vortex on the surface of the Earth's liquid outer core gives reasonable numbers and proves this hypothesis to be of value for further detailed analysis. As magnetic field generation by the helical structure is a surface effect, it is possible to find connection between Earth magnetic field fluctuations and fast relief changes on the iron fluid core ? the silicate mantle boundary of the Earth

Роль доверия в системе денежных отношений

Рассматриваются вопросы определения понятия «доверие», изучается зависимость доверия к национальной валюте от других элементов общественного доверия; освещаются подходы к измерению его уровня

Стимулирующие меры повышения доверия к банковскому сектору Республики Беларусь

На основе проводимых Национальным банком Республики Беларусь и коммерческими банками соответствующих мероприятий для поддержания доверия клиентов банков и с целью придания импульса данным мероприятиям показаны стимулирующие меры, нацеленные на укрепление доверия к банковскому сектору Республики Беларусь

A robot is a subject or an object from the perspective of the civil law of the Republic of Belarus

Artificial intelligence begins to enter our lives more actively. A new category appears on the legal horizon robots. This article explores the concept of the role of robots from the perspective of the civil law of the Republic of Belarus. The article examines the question if robots can have copyrights or not

О доверии населения банкам в Республике Беларусь: междисциплинарный подход

На основе данных проведенного социологического исследования показано применение междисциплинарных подходов к оценке доверия банкам, в частности – слияния психологии, социологии и экономической науки в рамках поведенческой экономики, что позволит обозначить подходы к операционализации понятия «доверие банкам»

Problem of Electromagnetic Compatibility between 4G/5G Mobile Communications and Railway Signaling/Telecommunication Equipment

A system-level analysis of EMC between the equipment of 4G/5G mobile communications and railway equipment is performed by using the standardized criteria for the immunity of railway signaling and telecommunication equipment to radio-frequency electromagnetic exposure through enclosure ports. Both a statistical approach based on the analysis of the conditional average level of the electromagnetic background created by 4G/5G base stations and the worst-case assessment of the required spacing of 4G/5G equipment and railway equipment, which ensures their EMC, were used. The results of the analysis show a significant potential danger of radiations of 4G/5G base stations and user's equipment for this railway equipment; underestimation of this danger is fraught with catastrophic consequences. Possible ways to eliminate the risk of disrupting the operation of railway signaling and telecommunication equipment in a complex electromagnetic environment created by 4G/5G systems are discussed

Anomalous electromagnetic coupling via entanglement at the nanoscale

This is the final version of the article. Available from IoP Publishing via the DOI in this record.Understanding unwanted mutual interactions between devices at the nanoscale is crucial for the study of the electromagnetic compatibility in nanoelectronic and nanophotonic systems. Anomalous electromagnetic coupling (crosstalk) between nanodevices may arise from the combination of electromagnetic interaction and quantum entanglement. In this paper we study in detail the crosstalk between two identical nanodevices, each consisting of a quantum emitter (atom, quantum dot, etc), capacitively coupled to a pair of nanoelectrodes. Using the generalized susceptibility concept, the overall system is modeled as a two-port within the framework of the electrical circuit theory and it is characterized by the admittance matrix. We show that the entanglement changes dramatically the physical picture of the electromagnetic crosstalk. In particular, the excitation produced in one of the ports may be redistributed in equal parts between both the ports, in spite of the rather small electromagnetic interactions. Such an anomalous crosstalk is expected to appear at optical frequencies in lateral GaAs double quantum dots. A possible experimental set up is also discussed. The classical concepts of interference in the operation of electronic devices, which have been known since the early days of radio-communications and are associated with electromagnetic compatibility, should then be reconsidered at the nanoscale.This research was supported in part by the EU Horizon 2020 project H2020-MSCA-RISE-2014-644076 CoExAN and EU FP7 projects, FP7-PEOPLE-2012-IRSES-316432 QOCaN and FP7-PEOPLE-2013-IRSES-612285 CANTOR. Discussions of the basic ideas underlying this work with Dr S Starobinets and Dr D Mogilevtsev are acknowledged

Quantum entanglement in electric circuits: From anomalous crosstalk to electromagnetic compatibility in nano-electronics

This is the author accepted manuscript. The final version is available from the publisher via the DOI in this record..We show that the electromagnetic coupling at the nanoscale may be accompanied by another coupling mechanism, related to quantum entanglement. Consequently, a combined 'electromagnetic-quantum' coupling is created, which stipulates long-distance and long-living interactions in electric circuits. Manifestation of this effect in electromagnetic compatibility (EMC) is discussed. An efficient theoretical framework for EMC analysis in nanoelectronics is developed based on the generalized theory of electric circuits. It is shown that the action of quantum entanglement is equivalent to an addition of the supplementary elements in electric circuit with the effective admittances defined as general susceptibilities that can be calculated using the Kubo-technique.This work was supported in part by EU grants FP7-PEOPLE-2009-IRSES- 247007 CACOMEL and FP7-PEOPLE-2013-IRSES- 612285 CANTOR