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Naoto Kan

As seen in: Radio-Canada, The Epoch Times, Physical Review B, East Asia Forum
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Articles by Naoto Kan

Magnetic monopole becomes dyon in topological insulators

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By Naoto Kan, Mikito Koshino, Shoto Aoki, Hidenori Fukaya
| Physical Review B
The Witten effect predicts that a magnetic monopole acquires a fractional electric charge inside topological insulators. In this work, we give a microscopic description of this phenomenon as well as an analogous two-dimensional system with a vortex. We solve the Dirac equation of electron field both analytically in a continuum and numerically on a lattice by adding the Wilson term and smearing the gauge field within a finite range to regularize the short-distance behavior of the system.
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Humanity’s COVID-19 crossroads | East Asia Forum

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By Naoto Kan, Murray Hiebert, Tim Ruehlig, James Laurenceson
| East Asia Forum Verified
16 June 2020 Author: Naoto Kan, Tokyo COVID-19 quickly spread worldwide from the end of 2019. While some countries are seeing a decline in transmission and are relaxing restrictions after almost six months of disruption and uncertainty, there are still no signs of an end to the emergency in many countries. Meanwhile, the global economic impact of the virus is worsening, and there is concern that the number of suicides linked to economic collapse will increase.
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Fukushima, cinq ans après la tragédie

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By Zone Nouvelles, Naoto Kan
| Radio-Canada Verified
« Une heure plus tard, on m'a avisé que [la centrale nucléaire] Daiichi avait perdu le courant. Ça m'a glacé le sang. Je ne suis pas un expert, mais j'ai étudié la physique et je comprenais que le temps était compté. » — Naoto Kan, ex-premier ministre du Japon Après Hiroshima, Nagasaki et maintenant Fukushima, le pays ne peut plus se permettre une autre tragédie nucléaire. Les coûts humains et financiers sont trop grands.
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Japan Committed To Nuclear Power Despite Fukushima Fiasco

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By Naoto Kan
| The Epoch Times
TOKYO— With the pull of a lever, control rods were lifted Tuesday from the reactor core at a plant in southern Japan, ending a ban on nuclear power following meltdowns at Fukushima in the northeast that forced tens of thousands of people to leave their homes, most of them for good. Crowded, energy-scarce Japan remains committed to nuclear power despite the March 2011 accident at the Fukushima Dai-Ichi plant and its messy aftermath, for economic, environmental and political reasons.
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