LIGO Detected Primordial Black Holes?

By Teruaki Suyama. Published on 15 December 2016 in:
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In September 2015, gravitational waves (GWs) were detected for the first time by the LIGO detectors, the two laser interferometers in the United States. It was found that detected GWs originate from the coalescence of two black holes (BHs) in a binary, each weighing about 30 times the mass of the Sun (30 solar mass). Although there have been indirect observations of BHs in the X-ray binaries, their masses are at most 15 solar masses.

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Researchers from China Obtain High-quality InGaAs/GaAsSb Superlattice Structures

By AAPPS Bulletin. Published on 25 June 2015 in:
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IInGaAs/GaAsSb superlattice structure is very attractive in photodetectors and light emitting devices. However, the growth of high quality GaAsSb alloys is a challenge. Recently, a research team from the Chinese Academy of Sciences (CAS) has successfully obtained high quality InGaAs/GaAsSb superlattice structures based on a broad analysis of growth mechanisms [1].

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A Neutron Optical Approach to Explore the Foundation of Quantum Mechanics

By Yuji Hasegawa. Published on 23 April 2015 in:
April 2015, News, ,

theory describes the behavior of a system at atomic and smaller scales. At the beginning of the 20th century, the theory was developed and became one of the most successful theories in physics; for a wide range of the field, the validity of the theory has been verified with high accuracy by experiments. From the beginning, how- ever, quantum mechanics has also supplied an extraordi- nary and even counter-intuitive view of nature: contrary to its success, the predictions by quantum theory are governed by a probability law and its logic is different from that in classical physics, to which we have become accustomed to in our ordinary lives.

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Ultra-high Power Lasers & Strong Field Science Research in Asia

By Chang Hee Nam. Published on 24 October 2014 in:
News, October 2014, ,

Strong field science has become one of the most active areas of research with the development of ultra-high power lasers. Ever since the introduction of the chirped pulse amplification technique in 1985, available laser power has increased dramatically. The coupling of the CPA technique with picosecond and femtosecond laser technology has made compact ultrashort high-power lasers readily accessible, boosting their usage in almost all areas of science, medicine and engineering. Fascinatingly ultra-high power lasers with power exceeding 100 TW or even 1 PW are now available or being prepared in a number of institutes around the world. Starting from the development of the 0.85-PW laser…

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First beam of antihydrogen atoms

By Yasunori Yamazaki. Published on 25 June 2014 in:
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ASACUSA at CERN, Antiproton Decelerator [AD], a Japanese-European collaboration working on antihydrogen production for the CPT symmetry test, has unambiguously detected an antihydrogen beam 2.7 meters downstream from the production region, for the first time. This is an important milestone towards high precision tests of the CPT symmetry via antihydrogen spectroscopy.

It is well-known that matter and antimatter are always created in equal amounts in laboratory experiments. It is …

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 Research news from Europe 

An overview of Neutron Facilities in Asia and Oceania

By Y. Fujii. Published on 27 April 2014 in:
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Since the mid 1940’s, the research reactors had provided stable and reliable neutron sources for experimental research of neutron scattering. By recognizing unique features and powerful probe ability of neutrons, particularly for material and life science, Europe and North America accelerated building high-flux beam reactors dedicated to neutron scattering in 1960’s and 1970’s. A large number of neutron users in these regions resulted in the formation of the European Neutron Scattering Association [ENSA] and the Neutron Scattering Society of America [NSSA], respectively.
In the Asia-Oceania Region, on the other hand, India and Australia initiated neutron scattering…

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7 research centres lead world-class physics research in Korea

By Yu Jin Jung. Published on 27 February 2014 in:
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Established in November 2011, the Institute for Basic Science [IBS] is moving forward to promote and secure creative knowledge for future generations through world-class research in fundamental sciences. Under the leadership of Professor Se-Jung Oh, the president of IBS, the institute is now composed of 20 research centres, the Rare Isotope Science Project which is constructing a heavy-ion accelerator called “RAON”, the National Institute for Mathematical Sciences, and a secretariat. In total, there are more than 900 researchers, students, and supporting staff, with an annual budget of 250 million USD. A brief introduction of the IBS research centres which are dedicated to research…

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Mathematical beauty behind particle production and Stokes phenomena

By Sang Pyo Kim. Published on 20 December 2013 in:
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At the James Scott Prize Lecture in 1939, P. A. M. Dirac emphasized the theory of functions of a complex variable as an interesting mathematical theory that fulfilled his criteria of beauty. He found this field to be of “exceptional beauty” and hence likely to lead to deep physical insight [1]. The lecture was delivered a decade after he discovered the Dirac equation, the positron was found, and the concept of the Dirac sea was well established.

Dirac theory predicts that an external electric field may tilt the Dirac sea such that an electron in a negative energy…

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Inauguration of the International Center of Interdisciplinary Science Education

By Roland Triacy. Published on 25 October 2013 in:
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On August 12, 2013, one and a half years after the groundbreaking ceremony of the International Center of Interdisciplinary Science Education [ICISE], an impressive building was inaugurated in Quy Nhon, Central Vietnam. The Vietnamese government, along with many internationally recognized, prestigious universities and institutions in physics, strongly endorsed this initiative.
The ICISE is part of an ambitious project planned by Professors Tran Thanh Van and Le Kim Ngoc, as part of the work of the Association “Rencontres du Vietnam”. This non-profit organization was created in 1996 to contribute to…

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ILC moving from design to reality

By Rika Takahashi. Published on 21 August 2013 in:
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A five-volume report containing the blueprint for a future particle physics project, the International Linear Collider [ILC], was published on 12 June 2013. In three consecutive ceremonies in Asia, Europe and the Americas, the authors of the Technical Design Report [TDR] for the ILC officially handed it over to the international oversight board for projects in particle physics, the International Committee for Future Accelerators [ICFA]. The ILC TDR presents the latest, most technologically advanced and most thoroughly scrutinised design for the ILC, and its publication implies that physicists now have a machine that they know they can build. “The Technical Design Report basically says…

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Asia-Europe cooperation meetings in Japan in four months from now

By Luisa Cifarelli. Published on 25 March 2013 in:
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The 3rd Asia-Europe Physics Summit [ASEPS3] will take place from 14-19 July 2013 in Chiba, Japan as part of the 12th Asia Pacific Physics Conference [APPC12]. The Summit is organised by the Association of Asia Pacific Physical Societies [AAPPS] and the European Physical Society [EPS].

APPC 12 is a broad spectrum conference devoted to all fields of physics and will include among its plenary speakers two Nobel laureates…

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