Quantum Information Theory Group

양자정보이론 연구그룹

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양자계는 고전계와는 판이한 양상으로 정보를 전달한다. 무엇이 그 차이를 특징지을까? 물리적 객체로서 양자정보의 성질은 무엇일까? 우리 연구그룹은 이러한 질문들을 양자상관관계, 양자자원의 촉매작용, 그리고 양자열역학과 같은 이론의 다양한 문제들을 해결하는 것을 통해 대답하고자 한다. 우리 연구그룹은 물리학과 수학의 근본적인 주제와 맞닿아 있는 동시에 현실세계의 실제적 응용과도 접점이 있는 미해결 이론문제 해결에 집중한다.
Quantum systems carry information in a fashion drastically differently from that of classical systems. What characterizes their difference? What is the nature of quantum information as a physical entity? Our group tackles this problem by studying informational behaviors of quantum systems in the theories of quantum correlation, catalysis of quantum resources and quantum thermodynamics. We focus on solving theoretical open problems of fundamental interest with connection to real-life applications.

Major research field

Catalytic quantum randomness, Quantum masking and secret sharing, Quantum thermodynamics

Desired field of research

Catalysis of quantum resources, Quantum state over time

Research Keywords and Topics

· Quantum information theory
· Quantum resource theory
· Quantum correlation
· Quantum randomness
· Quantum foundation

Research Publications

· Seok Hyung Lie and Hyunseok Jeong, "Faithfulness and sensitivity for ancilla-assisted process tomography", Phys. Rev. Lett. 130, 020802 (2023)
· Seok Hyung Lie and Hyunseok Jeong, "Delocalized and dynamical catalytic randomness and information flow", Phys. Rev. A 107, 042430 (2023)
· Seok Hyung Lie, Hyukjoon Kwon, M.S. Kim and Hyunseok Jeong, "Quantum one-time tables for unconditionally secure qubit-commitment", Quantum 5, 405 (2021)
· Seok Hyung Lie and Hyunseok Jeong, “Randomness cost of masking quantum information and the information conservation law", Physical Review A 101, 052322 (2020)
· Seok Hyung Lie and Hyunseok Jeong, "Limitations of teleporting a qubit via a two-mode squeezed state", Photonics Research, 7(5):A7, (2019)

국가과학기술표준분류

  • NB. 물리학
  • NB07. 원자·분자물리
  • NB0703. 양자정보