열환경에 이해 영향을 받는 Jaynes-Cummings 공진기들의 양자적 특성

손원민 空軍士官學校 1998 論文集 Vol.42 No.-

Analytic Evaluation of the High-Order Quantum Correlation for Non-Locality

손원민,Wonmin Son 한국물리학회 2016 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.69 No.11

From the view of non-locality, a possible high-dimensional quantum correlation has been investigated. Specifically, the convex sum of high moment correlations in a maximally entangled state of d-dimensional systems has been evaluated. The problem is demonstrated to be finding the determinant of symmetric matrices. With the correlation, the violation of local hidden variable model is illustrated as a function of dimensionality. It is found that the correlation function becomes analytic at an asymptotic limit and it is shown that the values at the limit can be obtained from the recent mathematical theorem on the determinant of Toplitze matrix.

Consistent Theory for Causal Non-locality Beyond the Born’s Rule

손원민 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.64 No.4

According to the theory of relativity and causality, a special type of correlation beyond quantummechanics is possible in principle under the name of a non-local box. The concept has beenintroduced from the principle of non-locality, which satisfies relativistic causality. In this paper, weshow that a correlation leading to the non-local box can be derived consistently if we release one ofmajor axioms in quantum mechanics, Born’s rule. This allows us to obtain a theory that in one endof the spectrum agrees with the classical probability and in the other end agrees with the theoryof non-local causality. At the same time, we argue that the correlation lies in a space with specialmathematical constraints such that a physical realization of the correlation through a probabilitymeasure is not possible in one direction of its limit, but is possible in the other limit.

수차 설비 개선을 통한 발전 효율 증대

손원민(Wonmin son),이찬혁(Chanhyeok Lee) 한국유체기계학회 2022 한국유체기계학회 학술대회 논문집 Vol.2022 No.11

2022년 노벨 물리학상 해설

손원민(Wonmin SON) 한국물리학회 2022 물리학과 첨단기술 Vol.31 No.12

This year’s Nobel Prize in physics was awarded to Alain Aspect, John Clauser and Anton Zeilinger. They are the scientists who completed the excellent experimental work on the verification of entanglement through the violation of Bell’s inequality. In my opinion, the announcement can be viewed as surprising news on the one hand while it also can be taken for granted on the other hand. It is because the field of the foundations of physics is conventionally considered to be lacking in its applicabilities, but the impact of this year’s Nobel Prize winning discovery is very farreaching. Here, in this article, I provide a detailed explanation of the Nobel Prize winning topic and make a couple of comments on the experiments.

중국 이동전화단말기업계 당향과 국내업체 진출현황

현인규,손원민 순천향대학교 사회과학연구소 2004 순천향 사회과학연구 Vol.9 No.2

Since the 1990s, the electronics industry has experienced a rapid crossover from analogue to digital technologies. Digital wireless telecom was first introduced in Europe in 1992, and has rapidly replaced its analogue predecessor. Digitalization greatly improved the quality of telecom services, and the standardization enabled mass production of handsets. As a result, the number of mobile telecom subscribers in the world has skyrocketed 500 thousand in 1992 to 1.1 billion at end of 2002. Korea also witnessed a surge in subscribers from 40 thousand to 32 million during the same period. China has the largest number of mobile phone-users in the world. and Foreign Firms are localizing their products in China as they strive for as greater share of the world's largest mobile phone market. Sooner or later China's phone market will face oversupply. The over production will lead to a price war and push many companies out of the market altogether. This paper will suggest entry strateiges to China's mobile handset market. The large companies, for example Samsung and LG, have to choose the skimming pricing policy through developing new high-tech products. It is important that the medium and small companies have a price competition through the alliance with excellent domestic parts production firms. World mobile phone market has been rapidly growing due largely to the increase of mobile phone users and the revolution of communication technology. However, in 2001, the economic recession of the United States, the largest importer of mobile phone, with the slow down of world IT industry and the postponement of 3G services has happened and they caused the shrinking of the market and the fall of growth rate. During the last several years, South Korea's export of mobile phone has been remarkably growing and become its seond largest export item ahead automobile. In particular, China, which is South Korea's strong competitor in this sector, now has the largest mobile phone users in the world and marks the highest growth in mobile phone services. Moreover, it is the largest producer of mobile phone in the world. In this sense, China has a Janus faced aspect. It is our export market as well as our production base of mobile phone. On the other hand, our mobile phone producers have to compete vehemently with Chinese local mobile phone producers. The importance of Chinese market has been increasingly growing and since 2003 china has become the largest export market. Among the export items to china, telecom equipments amounts to 17 percent of the total export. In particular, due largely to the abolition of subsidy applied to mobile phone in the Korean domestic market and the decrease of new mobile phone subscribers, Korean mobile phone makers step up their efforts to export to China. However, recently, some 67 percent of Chinese market has been occupied by its local mobile phone makers, which have done business very aggresively. The Chinese government also has supported its local producers, giving them a lot of incentives. This leads to a fierce fighting between Korean mobile phone producers who try to keep the market and Chinese local producers who have strong marketing capabilities. In order for our mobile phone producers to succeed continuously in Chinese market, we have to deeply consider two things. One is that we have to consider the scale of company. For instance, big companies like Samsung Electronics and LG Electronics have to focus on the development of new items, especially expensive ones. In particular, Samsung has to prepare for the lineup for GSM phone and increase its brend power. It has to transform from cheap and reasonable market to expensive market. Moreover, it has to jump on the new market of network equipments. Small and medium companies have to focus on acquiring price competitiveness. In addition to this, they have to cooperate with Korean local part makers and produce reasonable price items with good quality.

Axiomatic approach for the functional bound of multipartite high dimensional correlation

Gwangil Bae,손원민 한국물리학회 2016 Current Applied Physics Vol.16 No.3

We propose a formalism to derive the maximal bound of generalized Bell type correlation and shows that the formalism can be applied to various form of Bell functions. The Bell function is defined to generate correlations of multiparty high-dimensional system whose local hidden variable bound can be obtained from the series of the constraint equations. The application of the constraints converts the optimization problem into the counting problems whose complexity is dramatically reduced. It is also shown that the correlation can be used to generate many other known Bell type functions such as Mermin, Ardehali, Svetlichny functions for multipartite two-dimensional class.

중국 이동전화단말기업계 동향과 국내업체 진출현황

현인규 ( In Gyou Hyun ),손원민 ( Won Min Son ) 순천향대학교 사회과학연구소 2004 사회과학연구 Vol.9 No.2