Quantum Entanglement of Fermionic Local Operators

In this paper we study the time evolution of (Renyi) entanglement entropies for locally excited states in four dimensional free massless fermionic field theory. Locally excited states are defined by being acted by various local operators on the ground state. Their excesses are defined by subtracting (Renyi) entanglement entropy for the ground state from those for locally excited states. They finally approach some constant if the subsystem is given by half of the total space. They have spin dependence. They can be interpreted in terms of quasi-particles.Comment: 29pages, 7 figure

Low-Resolution Spectrum of the Diffuse Galactic Light and 3.3 um PAH emission with AKARI InfraRed Camera

We first obtained the spectrum of the diffuse Galactic light (DGL) at general interstellar space in 1.8-5.3 um wavelength region with the low-resolution prism spectroscopy mode of the AKARI Infra-Red Camera (IRC) NIR channel. The 3.3 um PAH band is detected in the DGL spectrum at Galactic latitude |b| < 15 deg, and its correlations with the Galactic dust and gas are confirmed. The correlation between the 3.3 um PAH band and the thermal emission from the Galactic dust is expressed not by a simple linear correlation but by a relation with extinction. Using this correlation, the spectral shape of DGL at optically thin region (5 deg < |b| < 15 deg) was derived as a template spectrum. Assuming that the spectral shape of this template spectrum is uniform at any position, DGL spectrum can be estimated by scaling this template spectrum using the correlation between the 3.3 um PAH band and the thermal emission from the Galactic dust.Comment: 7 pages, 5 figures, accepted by Publications of the Astronomical Society of Japan (PASJ

時間分解測定による量子ホールエッジ状態におけるダイナミクスの研究

Tohoku University遊佐剛課

時間分解測定による量子ホールエッジ状態におけるダイナミクスの研究

Tohoku University遊佐剛課

Highway mediation in Japan : its prospects and pitfalls

Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1998.Includes bibliographical references (leaves 117-118).by Masahiro Matsuura.M.C.P

Localizing public dispute resolution in Japan : lessons from experiments with deliberative policy-making

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 2006.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.Includes bibliographical references (p. 423-435) and index.Can consensus building processes, as practiced in the US, be used to resolve infrastructure disputes in Japan? Since the 1990s, proposals to construct highways, dams, ports and airports, railways, as well as to redevelop neighborhoods, have been opposed by a wide range of stakeholders. In response, there is a growing interest among Japanese practitioners in using consensus building processes, as practiced in the US, in order to resolve infrastructure disputes. Scholars and practitioners in the field of negotiation and dispute resolution, as well as policy transfer theorists, have raised concerns about cross-border transfers by referring to a variety of contextual differences between the "importing" and "exporting" countries. This dissertation investigates the relationship between the context and the introduction of consensus building processes from two perspectives: the adaptation of consensus building processes for the Japanese context and the organizational changes that seem to be required to allow processes from the US to work in Japan.(cont.) Without process adaptation and organizational change, consensus building processes are unlikely to be helpful in resolving infrastructure disputes in Japan, considering the breadth and depth of the contextual differences -- in organizational, normative, and regulative realms -- between Japan and the United States. The Japanese context for infrastructure planning was investigated through in-depth interviews with 40 practitioners in Japan. In order to explore possible strategies for adaptation and organizational change, I have closely observed an 18-month pilot test of a consensus building process for road intersection improvements in Tokushima, Japan as an instance of adaptation and organizational change. My close observation of this experiment identified a range of creative adaptation. Based on these observations, I argue that process adaptation and organizational change must occur simultaneously when consensus building processes are transferred to a foreign location.by Masahiro Matsuura.Ph.D

The use of system dynamics analysis and modeling techniques to explore policy levers in the fight against Middle Eastern terrorist groups

MBA Professional ReportThe objective of this project is to use analysis and modeling techniques of Systems Dynamics to capture the causal relationships of Middle Eastern groups' terrorist activities against the U.S. based on their ideological drivers, as well as the effect of U.S. policies that create dynamics and affect performance and outcomes. The main focus of this analysis is the terrorist groups' human resources. The hypothesis is that Middle Eastern terrorism against the U.S. is affected by the U.S. level of military presence and/or investment in the Middle Eastern nations. A considerable and lasting reduction in fatalities originated by Middle Eastern groups' terrorist attacks against the U.S. can be achieved through a policy that reduces both the human resources available to terrorist groups and their attack capability (level of sophistication). The study covers the implications of this resource reduction policy, which may include incremental military investment, defection motivators, antiterrorism and the use of counter-terrorism operations. These operations will reduce the sophistication as well as the recruitment rate to levels where cells' functionality will be impaired, and thus unable to carry high lethality attacks.http://archive.org/details/theuseofsystemdy1094510022Dominican Republic Navy autho

Improvement of the ability to recover balance through versatile kinesthetic learning experiences

The purpose of the present study was to compare learners' movement variability while maintaining balance and the ability to recover balance using the kinesthetic-experiential learning (KEL) method of implicit learning and the model-mastery learning (MML) method of explicit learning. The participants were 29 healthy university students. They were randomly divided into two groups (KEL and MML). They were required to balance both knees on an exercise ball. The balancing time and the ability to recover their balance were measured using motion capture. Results indicated that balancing time was significantly improved for both learning methods. Regarding the learners' movements while maintaining balance, they maintained balance while moving in the KEL method, whereas they maintained balance by keeping the entire body stationary in the MML method. Concerning the ability to recover, the KEL method improved the balance recovery ability more effectively than the MML method. Therefore, we concluded that using the KEL method at the initial stage of learning improves learners' balance recovery ability and increases movement variability