Generation and Suppression of Decoherence in Artificial Environment for Qubit System(General)

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概要

• 論文の詳細を見る

• A quantum system with finite degrees of freedom can simulate a composite of a system and its environment if the state of the hypothetical environment is randomized by external manipulation. We propose to examine various techniques in quantum information processing in virtual noisy environment with two concrete examples. One simulates phase decoherence of a single qubit in a transmission line, and the other does in a quantum memory. In both cases, the bang-bang control, a typical example of useful techniques employed in quantum information processing, is observed to be effective to suppress decoherence.

• 社団法人日本物理学会の論文
• 2007-07-15

著者

• UCHIYAMA Chikako

  Faculty of Engineering, University of Yamanashi

• Nakahara Mikio

  Department of Physics, Kinki University

• Kondo Yasushi

  Department of Physics, Kinki University

• Nakahara Mikio

  Department Of Physics Faculty Of Liberal Arts Shizuoka University

• KITAJIMA Sachiko

  Graduate School of Humanities and Sciences and Department of Physics, Faculty of Science, Ochanomizu

• Uchiyama Chikako

  Faculty Of Engineering University Of Yamanashi

• Kondo Yasushi

  Department Of Physics Kinki University

• Tanimura Shogo

  Graduate School Of Informatics Kyoto University

• Kitajima Sachiko

  Graduate School Of Pure And Applied Sciences University Of Tsukuba:department Of Physics Faculty Of

• Kitajima Sachiko

  Graduate School Of Humanities And Sciences And Department Of Physics Faculty Of Science Ochanomizu U

• SHIBATA Fumiaki

  Department of Physics,Faculty of Science,Ochanomizu University

• Shibata Fumiaki

  Department Of Physices Faculty Of Science Ochanomizu University

• NAKAHARA Mikio

  Department of Mathematics and Physics, Kinki University

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