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  •  Rudolf ZAHRADNIK
    1993年05月04日
    Rudolf ZAHRADNIK

    ***MAY 4, 1993, FILE PHOTO*** Former president of the Czech Academy of Sciences (CAV), one of the founders of Czech quantum chemistry, Rudolf Zahradnik, died at 92 today, on Saturday, October 31, 2020, the CAV has announced at its webpage. Zahradnik was also a founding member and chairman of the Learned Society of the Czech Republic. In the 1980s, he was a mentor of future German Chancellor Angela Merkel. (CTK Photo/Jaroslav Hejzlar)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110200024

  •  Rudolf ZAHRADNIK
    1993年09月24日
    Rudolf ZAHRADNIK

    ***SEPTEMBER 24, 1993, FILE PHOTO*** Former president of the Czech Academy of Sciences (CAV), one of the founders of Czech quantum chemistry, Rudolf Zahradnik, died at 92 today, on Saturday, October 31, 2020, the CAV has announced at its webpage. Zahradnik was also a founding member and chairman of the Learned Society of the Czech Republic. In the 1980s, he was a mentor of future German Chancellor Angela Merkel. (CTK Photo/Michal Krumphanzl)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110200059

  •  Rudolf ZAHRADNIK
    1997年04月15日
    Rudolf ZAHRADNIK

    ***APRIL 15, 1997, FILE PHOTO*** Former president of the Czech Academy of Sciences (CAV), one of the founders of Czech quantum chemistry, Rudolf Zahradnik, died at 92 today, on Saturday, October 31, 2020, the CAV has announced at its webpage. Zahradnik was also a founding member and chairman of the Learned Society of the Czech Republic. In the 1980s, he was a mentor of future German Chancellor Angela Merkel. (CTK Photo/Stanislav Peska)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110200062

  •  Rudolf ZAHRADNIK
    1997年07月10日
    Rudolf ZAHRADNIK

    ***JULY 10, 1993, FILE PHOTO*** Former president of the Czech Academy of Sciences (CAV), one of the founders of Czech quantum chemistry, Rudolf Zahradnik, died at 92 today, on Saturday, October 31, 2020, the CAV has announced at its webpage. Zahradnik was also a founding member and chairman of the Learned Society of the Czech Republic. In the 1980s, he was a mentor of future German Chancellor Angela Merkel. (CTK Photo/Tomas Zelezny)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110200063

  •  RUDOLF ZAHRADNIK
    2012年05月22日
    RUDOLF ZAHRADNIK

    ***FILE PHOTO***Former Head of Czech Academy of Sciences, Rudolf Zahradnik, has died at the age 92 in Prague, Czech Republic, November 1, 2020. He was a pioneer of quantum chemistry in the Czech and Central European context and served as a mentor to future German chancellor Angela Merkel when she was a student. (CTK Photo/Jaroslav Kucera)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110302471

  •  RUDOLF ZAHRADNIK
    2012年05月22日
    RUDOLF ZAHRADNIK

    ***FILE PHOTO***Former Head of Czech Academy of Sciences, Rudolf Zahradnik, has died at the age 92 in Prague, Czech Republic, November 1, 2020. He was a pioneer of quantum chemistry in the Czech and Central European context and served as a mentor to future German chancellor Angela Merkel when she was a student. (CTK Photo/Jaroslav Kucera)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110302472

  •  RUDOLF ZAHRADNIK
    2012年05月22日
    RUDOLF ZAHRADNIK

    ***FILE PHOTO***Former Head of Czech Academy of Sciences, Rudolf Zahradnik, has died at the age 92 in Prague, Czech Republic, November 1, 2020. He was a pioneer of quantum chemistry in the Czech and Central European context and served as a mentor to future German chancellor Angela Merkel when she was a student. (CTK Photo/Jaroslav Kucera)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110302476

  •  RUDOLF ZAHRADNIK
    2012年05月22日
    RUDOLF ZAHRADNIK

    ***FILE PHOTO***Former Head of Czech Academy of Sciences, Rudolf Zahradnik, has died at the age 92 in Prague, Czech Republic, November 1, 2020. He was a pioneer of quantum chemistry in the Czech and Central European context and served as a mentor to future German chancellor Angela Merkel when she was a student. (CTK Photo/Jaroslav Kucera)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110302491

  •  RUDOLF ZAHRADNIK
    2012年05月22日
    RUDOLF ZAHRADNIK

    ***FILE PHOTO***Former Head of Czech Academy of Sciences, Rudolf Zahradnik, has died at the age 92 in Prague, Czech Republic, November 1, 2020. He was a pioneer of quantum chemistry in the Czech and Central European context and served as a mentor to future German chancellor Angela Merkel when she was a student. (CTK Photo/Jaroslav Kucera)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110302496

  •  Rudolf ZAHRADNIK
    2014年03月26日
    Rudolf ZAHRADNIK

    ***MARCH 26, 2014, FILE PHOTO*** Former president of the Czech Academy of Sciences (CAV), one of the founders of Czech quantum chemistry, Rudolf Zahradnik, died at 92 today, on Saturday, October 31, 2020, the CAV has announced at its webpage. Zahradnik was also a founding member and chairman of the Learned Society of the Czech Republic. In the 1980s, he was a mentor of future German Chancellor Angela Merkel. (CTK Photo/Ludek Perina)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110200032

  •  ANGELA MERKEL, RUDOLF ZAHRADNIK
    2016年08月25日
    ANGELA MERKEL, RUDOLF ZAHRADNIK

    ***FILE PHOTO*** German Chancellor Angela Merkel meets her former teacher Rudolf Zahradnik, Czech physical chemist and former chairman of the Academy of Sciences, within her one-day visit to Czech Republic in Prague, Czech Republic, August 25, 2016. Former president of the Czech Academy of Sciences (CAV), one of the founders of Czech quantum chemistry, Rudolf Zahradnik, died at 92 today, on Saturday, October 31, 2020, the CAV has announced at its webpage. Zahradnik was also a founding member and chairman of the Learned Society of the Czech Republic. In the 1980s, he was a mentor of future German Chancellor Angela Merkel. (CTK Photo/Michal Dolezal)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020110200086

  • (Joachim Sauer) ヨアヒム・ザウアー
    2017年12月22日
    (Joachim Sauer) ヨアヒム・ザウアー

    ドイツ、量子化学者、メルケル首相の夫、2017年6月17日撮影(ロイター=共同)

    商品コード: 2017122200406

  •  Ales Brezina, Terezie Mandakova, Leos Valasek, Judit Sponerova, Michal Pavelka
    2020年09月23日
    Ales Brezina, Terezie Mandakova, Leos Valasek, Judit Sponerova, Michal Pavelka

    Five Czech scientists, (from left) musicologist and composer Ales Brezina, geneticist Terezie Mandakova, mikrobiologist Leos Valasek, quantum chemist Judit Sponerova and mathematician Michal Pavelka, have received the Czech Science Foundation (GACR) award for outstanding results achieved within projects funded by GACR and focused on basic research, awarded by Foundation chairwoman Alice Valkarova in Prague, Czech Republic, today, on Wednesday, September 23, 2020. (CTK Photo/Michal Krumphanzl)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020100605193

  •  Alice Valkarova, Judit Sponerova
    2020年09月23日
    Alice Valkarova, Judit Sponerova

    Five Czech scientists have received the Czech Science Foundation (GACR) award for outstanding results achieved within projects funded by GACR and focused on basic research, awarded by Foundation chairwoman Alice Valkarova (left) in Prague, Czech Republic, today, on Wednesday, September 23, 2020. On the photo receives the award from chairwoman quantum chemist Judit Sponerova. (CTK Photo/Michal Krumphanzl)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020100700163

  •  Judit Sponerova
    2020年09月23日
    Judit Sponerova

    Five Czech scientists, on the photo quantum chemist Judit Sponerova, have received the Czech Science Foundation (GACR) award for outstanding results achieved within projects funded by GACR and focused on basic research, awarded by Foundation chairwoman Alice Valkarova in Prague, Czech Republic, today, on Wednesday, September 23, 2020. (CTK Photo/Michal Krumphanzl)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020100700090

  •  Ales Brezina
    2020年09月23日
    Ales Brezina

    Five Czech scientists, on the photo musicologist and composer Ales Brezina, quantum chemist Judit Sponerova and mathematician Michal Pavelka, have received the Czech Science Foundation (GACR) award for outstanding results achieved within projects funded by GACR and focused on basic research, awarded by Foundation chairwoman Alice Valkarova in Prague, Czech Republic, today, on Wednesday, September 23, 2020. (CTK Photo/Michal Krumphanzl)、クレジット:CTK/共同通信イメージズ

    商品コード: 2020100700148

  •  「新華社」中国、量子コンピューター試作機「九章2号」の開発に成功
    00:50.24
    2021年10月28日
    「新華社」中国、量子コンピューター試作機「九章2号」の開発に成功

    中国科学技術大学(安徽省合肥市)はこのほど、同大学の潘建偉(はん・けんい)氏や陸朝陽(りく・ちょうよう)氏、劉乃楽(りゅう・だいらく)氏らの研究チームが、中国科学院上海マイクロシステム・情報技術研究所、国家並列コンピューター工程技術研究センターと共同で、光子113個、144モードによる量子コンピューター試作機「九章2号」の開発に成功したと発表した。ガウシアンボソンサンプリングと呼ばれる量子計算を行う速度は、世界最速のスーパーコンピューターの10の24乗倍で、量子コンピューター開発で重要な一歩を踏み出したという。潘氏らのチームは2020年、光子76個の量子コンピューター試作機「九章」の開発に成功。ガウシアンボソンサンプリング問題をスーパーコンピューターの100兆倍の速さで解き、中国が量子コンピューターの優位性を示す「量子超越性」を世界で2番目に達成した国となった。今年に入り、潘氏らのチームは相次いで概念や技術の革新を行い、「九章2号」の開発に成功した。研究チームの陸氏は、開発で進展を遂げた部分について「量子光源の品質や収集効率を大幅に向上させ、光源の重要指標を63%から92%に引き上げた。操作する光子数を76個から113個に増やした。さらに、プログラム可能な機能を新たに追加した」と説明した。その結果、「九章2号」の計算能力が大幅に向上していることが明らかとなった。これまで発表された最良な古典アルゴリズムによれば、「九章2号」は世界最速のスーパーコンピューターの10の24乗倍、「九章」の100億倍の速さでガウシアンボソンサンプリング問題を解くことができる。研究成果は25日、物理学誌「PhysicalReviewLetters」に掲載された。汎用量子コンピューターは将来的に、暗号解読や天気予報、材料設計、薬品分析などの分野での活躍が期待される。「九章2号」はまだ「種目別優勝」にすぎないが、その演算能力の高さから、今後はグラフ理論や量子化学などの分野での応用が見込める。(記者/屈彦、徐海濤、張紫贇) =配信日: 2021(令和3)年10月28日、クレジット:新華社/共同通信イメージズ

    商品コード: 2021102800652

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