Noise effect on Grover algorithm

The decoherence effect on Grover algorithm has been studied numerically through a noise modelled by a depolarizing channel. Two types of error are introduced characterizing the qubit time evolution and gate application, so the noise is directly related to the quantum network construction. The numerical simulation concludes an exponential damping law for the successive probability of the maxima as time increases. We have obtained an allowed-error law for the algorithm: the error threshold for the allowed noise behaves as Eth(N) ~ 1/N1.1 (N being the size of the data set). As the power of N is almost one, we consider the Grover algorithm as robust to a certain extent against decoherence. This law also provides an absolute threshold: if the free evolution error is greater than 0.043, Grover algorithm does not work for any number of qubits affected by the present error model. The improvement in the probability of success, in the case of two qubits has been illustrated by using a fault-tolerant encoding of the initial state by means of the [[7,1,3]] quantum code.Comment: Accepted to be published in Eur. Phys. J. D (2008

Fabrication and mechanical testing of a new sandwich structure with carbon fiber network core

The aim is the fabrication and mechanical testing of sandwich structures including a new core material known as fiber network sandwich materials. As fabrication norms for such a material do not exist as such, so the primary goal is to reproduce successfully fiber network sandwich specimens. Enhanced vibration testing diagnoses the quality of the fabrication process. These sandwich materials possess low structural strength as proved by the static tests (compression, bending), but the vibration test results give high damping values, making the material suitable for vibro-acoustic applications where structural strength is of secondary importance e.g., internal panelling of a helicopter

What the Catholic Church Has Learnt from Interreligious Dialogue

It has been more than 40 years since the document Nostra Aetate was promulgated. This document encourages in the Catholic Church an open attitude toward non-Christian religions. Since then, the Church has engaged in interreligious dialogue in the spirit of the principles of Nostra Aetate. As a result, it has learnt much from dialogue and has undertaken pertinent reforms. At first, because of its far-reaching character, Nostra Aetate took the Church by surprise. Thus it was necessary that the validity of this document be evidenced on theological foundations; as a result, in fact, it has produced theological advances. Developments, related to Interreligious dialogue, on matters of ecclesiology, the Trinity, and especially pneumatology are found in the teaching of various Sovereign Pontiffs and in certain other Church documents. The validity of these developments has been supported through the practice of dialogue. The paper makes this clear by illustrating some aspects of the practice of dialogue after Vatican II. At the same time, the state of interreligious dialogue and some associated problems stand out in relief. Today the Catholic Church reconfirms its traditional self-understanding while it recognizes the necessity of collaboration and peaceful coexistence with other religions.This paper is the address delivered at Brandeis University as part of the conference, "In Out Time: Interreligious Relations in a Divided World," held on March 16, 2006, co-sponsored by Brandeis University and by Boston College through its Center for Christian-Jewish Learning.application/pdfresearch repor

Validation of a B-type natriuretic peptide as a prognostic marker in pneumonia patients: a prospective cohort study

金沢医科大学博士（医学）2015thesi

Electronic activity of daily living: a proposal of a new evaluation tool

Letter To The Editorothe

日本の対外情報発信の現状と改革

東京財団研究推進部research repor

＜翻訳＞「身長 : 長期的推移の主要な決め手 ; 日本と韓国」『専修大学社会科学研究所月報』No.644,2017年2月(森宏著)

人の身長は主として遺伝要因で決まる。しかしながらそれは一生の初期年次(幼児期)における,たとえば栄養不良や慢性疾病などの悪条件で阻害されることがあると言われる。隣り合った2カ国,日本と韓国の青少年の成長パタンを比較しながら,本稿は思春期における,通常あげられることの多い肉や牛乳ではなく,野菜と果物,特に柑橘類の摂取が,青少年の身長増進に有益であることを示唆する。この考えは,国立研究開発法人果樹研が浜松医大と共同で実施した三ヶ日町住民の長期にわたるコウホート調査に基づく,「果物,特にミカンの摂取が,更年期女性の骨密度低下と骨粗しょう症の危険を低下させる」という分析結果から与えられたものである。departmental bulletin pape

A Study of Katherine Mansfield

25KJ00003571846論文Articledepartmental bulletin pape

数学的問題解決におけるメタ認知の役割に関する研究(Ⅰ)－メタ認知的支援の有効性について

application/pdfjournal articl

Disruption Management for Commercial Aviation

Airlines are constantly facing operational disruptions such as reduced airport capacity because of bad weather or strikes, unexpected aircraft unavailability due to mechanical failures, and delayed or cancelled flights. In view of this, ROADEF organized a worldwide challenge to explore the problems encountered in real world airlines when disruptions happen and find approaches to tackle them. In this paper, a new continuous time aircraft routing model is developed which can minimize aircraft delay cost accurately and efficiently handle all types of disruptions encountered in ROADEF. Applying a new decomposition　algorithm, near optimal solutions for aircraft routing can be obtained. A passenger re-accommodation model is solved subsequently using the results from the aircraft routing model as input. Competitive results are obtained applying the proposed approach to instances provided by ROADEF.departmental bulletin pape