2. Research
  3. Researcher's Profile
  4. Yasunobu NAKAMURA

Researcher's Profile

  • Professor
  • Yasunobu NAKAMURA
  • Quantum Information Physics and Engineering

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April 1992 Researcher, NEC Fundamental Research Laboratories
September 2001 Visiting Scientist, Delft University of Technology (~2002.8)
September 2002 Visiting Researcher, RIKEN
June 2005 Research Fellow, NEC Fundamental and Environmental Research Labs.
January 2012 Professor, Department of Applied Physics, The University of Tokyo(UTokyo)
April 2012 Professor, RCAST, UTokyo
February 2014 Team Leader, Center for Emergent Matter Science, RIKEN (~2020.9)
October 2020 Group Director, Center for Emergent Matter Science, RIKEN

Research Interests

Founded the in early 20th century, quantum mechanics is a foundation of contemporary physics and has had tremendous impacts in our society. In the latter half of the last century, we witnessed the blossoming of technologies based upon quantum mechanics. For example, quantum theories of atomphoton interactions led to the invention of lasers and optical communication technologies, and quantum theory of solids enabled the incredible evolution of computers based on semiconductor integrated circuits.

Even so, we have not fully exploited the power of quantum mechanics. For example, an axiom of quantum mechanics allows distinct quantum states to be "superposed!". In our daily life, however, we rarely see the effects of superposition. Nevertheless, in carefully designed quantum systems it is possible to manipulate and observe such quantum states. It has been proven that applications of the concept in information science leads to unprecedentedly secure or efficient information processing technologies such as quantum communication and computation.

In our group, we are pursuing experimental implementations of these novel ideas. Particularly our interests lie in the physics and engineering of quantum-state controls and measurements in electrical and optical devices. Current research themes include: (i) control of interactions between superconducting quantum bits as artificial atoms and microwave photons in superconducting electrical circuits and (ii) hybrid quantum systems as a coherent interface for quantum information.


  • November 1999 Sir Martin Wood Prize
  • December 1999 Nishina Memorial Prize
  • June 2014 2014 Thomson Reuters Highly Cited Researcher
  • November 2014 Leo Esaki Prize
  • September 2020 APS Fellow

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