Search Results:　 1-20 of 383

1

Concatenated Composite Pulses Compensating Simultaneous Systematic Errors

Bando Masamitsu , Ichikawa Tsubasa , Kondo Yasushi , Nakahara Mikio

… In NMR experiments and quantum computation, many pulse (quantum gate) sequences called the composite pulses, were developed to suppress one of two dominant errors; …

J Phys Soc Jpn 82(1), 014004-014004-7, 2013-01-15

The Japan Society of Applied Physics
2

Introduction to topological insulators [in Japanese]

安藤陽一

応用物理 81(12), 1020-1023, 2012-12-00
3

High-Supercurrent-Density Contacts and Josephson Effect of Strontium Ruthenate

Saitoh Kohta , Kashiwaya Satoshi , Kashiwaya Hiromi , Koyanagi Masao , Mawatari Yasunori , Tanaka Yukio , Maeno Yoshiteru

… We have developed a process of fabricating high-supercurrent-density contacts to Sr2RuO4 as a key technology for the development of topological quantum computing. …

Applied Physics Express 5(11), 113101-113101-3, 2012-11-25

The Japan Society of Applied Physics
4

Half-Quantum Vortices in Thin Film of Superfluid 3He

Kondo Kenji , Ohmi Tetsuo , Nakahara Mikio , Kawakami Takuto , Tsutsumi Yasumasa , Machida Kazushige

… Stability of a half-quantum vortex (HQV) in superfluid 3He has been discussed recently by Kawakami et al. …

J Phys Soc Jpn 81(10), 104603-104603-5, 2012-10-15

The Physical Society of Japan
5

Quantum Phase Control by Using optical Frequency Comb [in Japanese]

金森英人

光学 = Japanese journal of optics : a publication of the Optical Society of Japan, the Japan Society of Applied Physics 41(9), 472-478, 2012-09-00
6

Outcome Independence of Entanglement in One-Way Computation

Sasaki Toshihiko , Ichikawa Tsubasa , Tsutsui Izumi

… We show that, in the standard scheme of one-way computation where the quantum circuit consists of controlled-NOT gates and rotation gates, all intermediate states appearing in the process at a given step of measurement are equivalent modulo local unitary transformations. … This implies, in particular, that all those intermediate states share the same entanglement irrespective of the measurement outcomes, indicating that the process of one-way computation is essentially unique with respect to local quantum operations. …

J Phys Soc Jpn 81(6), 064005-064005-6, 2012-06-15

The Physical Society of Japan
7

LTM Center Seminars [in Japanese]

… Single-electron circuitry is a promising route for quantum information processing, but requires a mechanism to transport single electrons from one functional part of the circuit to another. … In quantum dots - small electronic islands, which can contain as little as a single electron-, this was only possible between quantum dots, which are spaced extremely closely. …

低温物質科学研究センター誌 : LTMセンター誌 20, 58-58, 2012-06-00

IR
8

Reconstructing Strings from Substrings with Quantum Queries (Theoretical Foundations of Computing)

CLEVE RICHARD , IWAMA KAZUO , LE GALL FRANCOIS 他

電子情報通信学会技術研究報告 : 信学技報 112(21), 7-14, 2012-04-27
9

Random Interface-Traps-Induced Electrical Characteristic Fluctuation in 16-nm-Gate High-\kappa/Metal Gate Complementary Metal--Oxide--Semiconductor Device and Inverter Circuit

Li Yiming , Cheng Hui-Wen

… Randomly generated devices with two-dimensional (2D) ITs at HfO2/Si interface are incorporated into quantum-mechanically corrected 3D device simulation. …

Jpn J Appl Phys 51(4), 04DC08-04DC08-6, 2012-04-25

The Japan Society of Applied Physics
10

Two Black Ships to Open Japan : Impacts on Individuals and Organizations

HIGA Kunihiko , MATSUMOTO Muneki , OGAWA Hirofumi , IGAWA Kousaku

… They are the Cloud Computing (CC) and the Crowd Sourcing (CS). …

The Japanese journal of telework 10(1), 36-42, 2012-04-01

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11

The Linguistic Information and Human Evolution : The Mechanism of Linguistic Automata: Concept, Grammar and Logical Concept [in Japanese]

Tokumaru Kimiaki

言葉は記号である.ローレンツやティンバーゲンなどの動物行動学者によれば,記号は反射を生み出す刺激である.反射のメカニズムも解明されていないが,それが大脳皮質上の現象でないことはパブロフの実験から明らかである.筆者はイエルネのネットワーク理論・生成文法論を何度も読むことによって,(i)脳脊髄液中のBリンパ球が「子孫には伝達されない絶え間ないネットワークの組み換えの中に保存される」パターン記憶を作り上 …

IEICE technical report. Theoretical foundations of Computing 111(494), 1-8, 2012-03-09

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12

Non-adiabatic Fast Control of Mixed States Based on Lewis--Riesenfeld Invariant

Fasihi Mohammad-Ali , Wan Yidun , Nakahara Mikio

… We apply the inversely-engineered control method based on Lewis--Riesenfeld invariants to control mixed states of a two-level quantum system. … We show that the inversely-engineered control passages of mixed states --- and pure states as special cases --- can be made significantly faster than the conventional adiabatic control passages, which renders the method applicable to quantum computation. …

J Phys Soc Jpn 81(2), 024007-024007-8, 2012-02-15

The Physical Society of Japan
13

Characterization and Analysis of Low-Frequency Noise in SiN Insulator-Gate GaAs Etched Nanowire FETs [in Japanese]

Muramatsu Toru , Kasai Seiya , Yatabe Zenji

FETの微細化がすすむと素子自身が発する雑音が増加するといわれており,系統的評価や理解が必要である.本研究では次世代集積回路スイッチングデバイスの1つであるIII-V族化合物半導体絶縁ゲートナノワイヤトランジスタをとりあげ,低周波雑音の素子サイズ依存性の評価及びその解析を行った.本素子ではゲート絶縁膜であるSiN中の電子トラップ充放電による雑音が観測された.ナノワイヤ幅の微細化にともない雑音強度が …

Technical report of IEICE. SDM 111(426), 89-93, 2012-01-31

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14

Characterization and Analysis of Low-Frequency Noise in SiN Insulator-Gate GaAs Etched Nanowire FETs [in Japanese]

Muramatsu Toru , Kasai Seiya , Yatabe Zenji

FETの微細化がすすむと素子自身が発する雑音が増加するといわれており,系統的評価や理解が必要である.本研究では次世代集積回路スイッチングデバイスの1つであるIII-V族化合物半導体絶縁ゲートナノワイヤトランジスタをとりあげ,低周波雑音の素子サイズ依存性の評価及びその解析を行った.本素子ではゲート絶縁膜であるSiN中の電子トラップ充放電による雑音が観測された.ナノワイヤ幅の微細化にともない雑音強度が …

IEICE technical report. Electron devices 111(425), 89-93, 2012-01-31

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15

Quantum Computing for Information Science Students (2) [in Japanese]

中島由美 , 土屋尚

明星大学研究紀要. 情報学部 -(20), 75-88, 2012-00-00
16

A new SPICE model for organic molecular transistors and a novel hybrid architecture

Ghasemi Mehdi , Sam Mahya , Moaiyeri Mohammad Hossein , Khosravi Fatemeh , Navi Keivan

Molecular transistors can play a very important role in the design and fabrication of complex logic functions inside chips. In this paper, we present an SPICE model for simulating molecular transistor …

IEICE Electronics Express 9(10), 926-931, 2012

J-STAGE CrossRef
17

Numerical Solvers for Solving Linear Systems with Multiple Right-hand Sides [in Japanese]

Tadano Hiroto , Sakurai Tetsuya

… Linear systems with multiple right-hand sides arise in many applications such as lattice quantum chromodynamics (QCD) calculation, the eigensolver using contour integral, and so on. … After that, the cause of the deterioration of the accuracy of approximate solutions generated by the Block BiCGSTAB method is analyzed, and the Block BiCGGR method for computing high accuracy solutions is described. …

応用数理 21(4), 276-288, 2011-12-22

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18

Scalable Neutral Atom Quantum Computer with Interaction on Demand: Proposal for Selective Application of Two-Qubit Gate

Lapasar Elham Hosseini , Kasamatsu Kenichi , Kondo Yasushi , Nakahara Mikio , Ohmi Tetsuo

… We propose a scalable neutral atom quantum computer with an on-demand interaction through a selective two-qubit gate operation. …

J Phys Soc Jpn 80(11), 114003-114003-10, 2011-11-15

The Physical Society of Japan
19

Quantum computing... with a twist [in Japanese]

Simon Steve , 佐藤昌利訳

Parity. 26(11), 20-27, 2011-11-00
20

Experimental Studies of Superconductivity as Macroscopic Quantum Phenomena(Celebrating the Centenary of Superconductivity) [in Japanese]

Nakamura Yasunobu

巨視的量子効果としての超伝導に関わる実験の歴史と最近の進展を概観する.特に超伝導秩序パラメータの位相がどのようにして理解され,制御されてきたかということに注目する.巨視的量子コヒーレンスや量子計算といった新しい概念が大きな動機付けとなって研究が進み,電気回路上で人工的な量子力学系を設計しその量子状態を自在に操ることができるようになってきている.

Butsuri 66(10), 762-769, 2011-10-05

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