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New QOQI homepage

Research Highlight

  • Uncertainty principle; Information theoretic quantum uncertainty.
  • Generalization of non-locality; What is the most general form of non-locality?
  • Estimation theory and precision measurement; Does entanglement help?
  • Quantum control and quantum biology;
  • Quantum cryptography and information;
  • Many-body & complex quantum system; How can the multipartite entanglement relate with exotic phase of materials?
  • Contextuality and graph theory for high-dimensional systems;

A few selected articles

  • "Optimized entropic uncertainty for successive projective measurements",

Kyunghyun Baek, Tristan Farrow, and Wonmin Son, Phys. Rev. A. 89, 032108 (2014)

  • "Quantum phase transition between cluster and antiferromagnetic states",

W. Son, L. Amico, R. Fazio, A. Hamma, S. Pascazio, V. Vedral, Europhys. Lett. vol. 95, 50001 (2011)

  • "Quantum instability in a quasi-long-range ordered phase",

W. Son, L. Amico, F. Plastina, V. Vedral, Phys. Rev. A, 79, 022302 (2009)

  • "Test of nonlocality for a continuous-variable state based on arbitrary number of measurement outcomes",

W. Son, C. Brukner and M. S. Kim, Phys. Rev. Lett., 97, 110401 (2006)

  • "Joint measurements and Bell inequalities",

W. Son, E. Andersson, S. M. Barnett and M. S. Kim,Phys. Rev. A, 72, 052116, (2005)

  • "Entanglement by a beam splitter: nonclassicality as a prerequisite for entanglement",

M. S. Kim, W. Son, V. Buzek, and P.L. Knight, , Phys. Rev. A, 65, 032323 (2002)

more Publications 

General Articles


Lecture Note

  • Entanglement (양자 얽힘 현상이란 무엇인가?) (2013년 2월 18일 KIAS Winter School)
 "Entanglement", 2013

What is happening at QOQI lab

  • 2017/04/19-21 There was 2017 KPS spring conference in Daejeon, Republic of Korea.
    • Poster : Towards the tightness condition of Bell's inequalities for bi-partite high-dimensional system / Kwang-il Bae and Wonmin Son
    • Poster : Entropy and non-Gaussianity bounded uncertainty relations / Kyunghyun Baek and Wonmin Son
  • 2017/02/16 There was Quantum ICT Tech Symposium 2017 hosted by Quantum Union of Korea.
    • Student presentation
      • Towards the tightness condition of Bell's inequalities for bipartite high dimensional system / Kwangil Bae, Wonmin Son
      • Non-Gaussianity and entropy-bounded uncertainty relations / Kyunghyun Baek, Wonmin Son
    • K. Bae was received the exellence award for student presentation.
  • 2016/10/19-21 There was 2016 KPS fall conference in Gwangju, Republic of Korea.
    • Poster : Key rate enhancement using qutrit states for quantum key distribution with askew aligned sources / Yonggi Jo and Wonmin Son
    • Undergraduate student poster presentations
      • Simulation of 1D Ising model using MPS method / Eunhye Kang, Donggeun Lee and Wonmin Son
      • Analytic approach for the functional bound of generalized Bell correlation / Seoyoung Lee, Kwangil Bae and Wonmin Son
      • Unsharpness of generalized measurement and its effect in entropic uncertatinty relations under white noise / Jeongwon Lee, Kyunghyun Baek and Wonmin Son
      • Quantum key distribution post-process program / Youngmin Jo, Yonggi Jo, Gunwoo Kim and Wonmin Son
    • Jeongwon Lee received the excellence award for the undergradutate student presentation (Congratulation!).
  • 2016/09/12-16 There was QCrypt 2016 in Washington DC, USA.
    • Poster : Key rate enhancement using qutrit states for quantum key distribution with askew aligned sources / Yonggi Jo and Wonmin Son
  • 2016/08/28-09/02 There was AQIS 2016 in Taipei, Taiwan.
    • Poster : Entropic uncertainty relations for successive generalized measurements / Kyunghyun Baek, Kwangil Bae and Wonmin Son
  • 2016/07/24-29 There was ICAP 2016 in Seoul, Republic of Korea.
    • Prof. W. Son (Local organizing committee)
    • K. Baek, K. Bae, D. Lee, Y. Jo, G. Kim (Volunteer staff)
    • Poster : Simulation of the small number of qubits in 1D array using MPS method / Donggeun Lee, Kyunghyun Baek and Wonmin Son

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