[1] H. Jeong, "Nonclassical properties of light and their applications to quantum information processing", Invited talk, Quantum Sensing Workshop 2021, Pusan University (4 February, 2021).
[2] H. Jeong, "Towards resource-efficient and fault-tolerant quantum computation with light", Keynote talk, 2020 International Workshop on Quantum Computing, New Taipei City, Taiwan (31 August-1 September, 2020).
[3] H. Jeong, "Resource-efficient and fault-tolerant quantum computing with light", Invited talk, 2020 International Workshop on Quantum Computing, Online meeting organized by Ministry of Science and ICT, Korea (26-26 August, 2020).
[4] H. Jeong, "Towards fault-tolerant and resource efficient quantum computing beyond single-photon qubits", Invited Talk, The 11th International Conference on Advanced Materials and Devices (ICAMD 2019), Ramada Plaza Jeju Hotel, Jeju, Korea (December 10-13, 2019)
[5] H. Jeong, "Quantum information technologies with light", Invited Talk, Optical Society of Korea 30 Years Memorial Meeting, KAIST Hongreung Campus, Seoul, Korea (October 19, 2019)
[6] H. Jeong, "Macroscopic quantum superpositions: characterization and usefulness", Keynote Talk (Smart Science Session), The 32nd US-Korea Conference on Science, Technology and Entrepreneurship, Chicago, USA (August 14-17, 2019)
[7] H. Jeong, "Resource-efficient and fault-tolerant quantum information processing beyond single-photon qubits", Invited Talk, 2nd Advances in Quantum Engineering International Meeting, Shenzhen, China (June 24-26, 2019)
[8] H. Jeong, "Quantification and unification of quantum macroscopicity, coherence, and nonclassicality for light fields", Invited Talk, SPIE Photonics Asia, Beijing International Convention Center, Beijing, China (October 12, 2018)
[9] H. Jeong, "Quantifications and unification of quantum macroscopicity, coherence, and nonclassicality", Invited Talk, 7th International Conference on New Frontiers in Physics (ICNFP 2018), Orthodox Academy of Crete, Kolymbari, Greece (July 12, 2018)
[10] H. Jeong, "From Schrödinger's Cat Paradox to Modern Quantum Information Science", Invited Colloquium, Department of Physics, Korea University, Seoul, Korea (April 10, 2018)
[11] H. Jeong, "From Schrödinger's Cat Paradox to Modern Quantum Information Science", Invited Colloquium, Gwangju Institute of Science and Technology College Colloquium, Gwangju Institute of Science and Technology, Gwangju, Korea (April 5, 2018).
[12] H. Jeong, "From Schrödinger's Cat to Quantum Information Technology", Colloquium, Department of Physics and Astronomy (Astronomy), Seoul National University, Seoul, Korea (November 16, 2017).
[13] H. Jeong, "From Schrödinger's Cat to Quantum Information Science and Technology", Colloquium, Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, Korea (November 13, 2017).
[14] H. Jeong, "Macroscopic superpositions and quantum information processing", Invited Talk, The 3rd KIAS Workshop on Quantum Information and Thermodynamics, Korea Institute for Advanced Study, Seoul, Korea (September 20, 2017).
[15] H. Jeong, "빛의 연속 및 불연속 변수를 이용한 양자정보처리", Invited Talk, The Optical Society of Korea Summer Meeting 2017 (2017 Optics and Photonics Congress), BEXCO, Busan, Korea (July 10, 2017).
[16] H. Jeong, "Macroscopic superpositions and optical quantum information processing beyond single-photon qubits", Invited Talk, 24th Central European Workshop on Qantum Optics (CEWQO 2017), Copenhagen, Denmark (June 30, 2017).
[17] H. Jeong, "All-optical quantum information processing beyond single-photon qubits", Research Seminar, University of Oklahoma, Oklahoma, USA (November 14, 2016).
[18] H. Jeong, "From Schrödinger's Cat to Quantum Information Technologies", Invited Colloquium, Michigan Technology University, Michigan, USA (November 17, 2016).
[19] H. Jeong, "From Schrödinger’s Cat Paradox to Modern Quantum Information Technologies", Invited Colloquium, Kyung Hee University, Seoul, Korea (October 27, 2016).
[20] H. Jeong, "All-optical quantum information processing beyond single-photon qubits", Invited Seminar, Electronics and Telecommunications Research Institute (ETRI), Daejeon, Korea (October 13, 2016).
[21] H. Jeong, "From Schrödinger's cat paradox to modern quantum information science", Invited Talk, Nepal Physical Society, Kathmandu, Nepal (September 29, 2016).
[22] H. Jeong, "All-optical quantum computation and communication beyond single-photon qubits," Invited Talk, AQIS '16(16th Asian Quantum Information Science Conference) - Satellite Workshop "Continuous Variables for Quantum information processing", National Tsing Hua University, Hsinchu City, Taiwan (September 4, 2016).
[23] H. Jeong, "Quantum information processing with light beyond single photon qubits," Invited Talk, Seoul Conference on Frontiers in Quantum Information Science (A Satellite Meeting of ICAP 2016 in Seoul), Korea Institute for Advanced Study, Seoul, Korea (July 23, 2016).
[24] H. Jeong, "From Schrödinger's cat to quantum technologies," Invited Seminar, Kathmadnu University, Dhulikhel, Nepal (February 22, 2016).
[25] H. Jeong, "All-optical quantum information processing beyond single-photon qubits", Invited Talk, International School and Conference on Quantum Information 2016 (ISCQI 2016), Bhubaneswar, India (February 17, 2016).
[26] H. Jeong, "Photonic quantum information processing beyond single-photon qubits", Invited Talk, The 2015 Frontiers in Optics/Laser Science Conference, San Jose, California, USA (October 22, 2015).
[27] H. Jeong, "Macroscopic quantum superposition and entanglement of light fundamentals and applications", Invited Talk, IBS-PCS Inaugural Symposium Physics Frontiers of Complex Systems, Daejeon, Korea (July 24, 2015).
[28] H. Jeong, "All-optical quantum information processing beyond single-photon qubits", Invited Talk, 14th International Conference on Squeezed States and Uncertainty Relations (ICSSUR 2015), Gdansk, Poland (June 29, 2015).
[29] H. Jeong, "All-Optical Quantum Computation beyond Single Photon Qubits", Invited Talk, The 23rd Korea Internet Conference (KRnet 2015), Seoul, Korea (June 23, 2015).
[30] H. Jeong, "Macroscopic quantum superposition and entanglement: characterizations, applications and implementations in optical fields", Invited Talk, The 2nd Korean-American Kavli Frontiers of Science Symposium, Jeju, Korea (June 18, 2015).
[31] H. Jeong, "양자 역학의 신기한 현상들을 거시 세계로 이끌어내고 이해하며 이용하기", Invited Colloquium, Sogang University, Seoul, Korea (May 12, 2015).
[32] H. Jeong, "광학기반의 양자정보처리 - 단일광자 큐비트를 넘어서", Invited Talk, Advanced Lasers and Their Applications (ALTA 2015), Jeju, Korea (May 8, 2015).
[33] H. Jeong, "Generation of hybrid entanglement of light and their applications to quantum information processing", Invited Talk, The Optical Society of Korea Winter Annual Meeting 2015, Daejeon Convention Center, Korea (January 29, 2015).
[34] H. Jeong, "Hybrid entanglement between quantum and classical states of light: generation and applications", Invited Talk, The 8th Asia-Pacific Conference and Workshop on Quantum Information Science 2014 (APCWQIS 2014), National Cheng Kung University, Tainan, Taiwan (December 12, 2014).
[35] H. Jeong, "Macroscopic quantumness: characterizations, applications and implementations in optical fields", Invited Talk, 2014 Inter-Academy Seoul Science Forum, Sejong University Convention Center, Seoul, Korea (November 13, 2014).
[36] H. Jeong, "Entangling quantum and classical states of light", Oral Presentation, The 12th International Conference on Quantum Communication, Measurement and Computing (QCMC 2014), University of Science and Technology of China, China (November 04, 2014).
[37] H. Jeong, "Hybrid entanglement between quantum and classical states of light: theory, implementation and applications", Invited Seminar, KIST 나노양자정보연구센터 세미나, Korea Institute of Science and Technology, Korea (October 27, 2014).
[38] H. Jeong, "파동성질 빛과 입자성질 빛의 얽힘 상태 실증", Invited Talk, e-Nanoschool(e-Journal club), 나노기술연구협의회, Korea (August 28, 2014).
[39] H. Jeong, "자연현상의 이론적 해석-양자 역학의 신기한 현상들을 거시 세계로 끌어내고 이용하며 이해하기", CTP Invited Colloquium, Department of Physics, Seoul National University, Seoul, Korea, (May 30, 2014).
[40] H. Jeong, "양자 세계 탐험하기", Public lecture, 금요일에 과학터치, Gwangju Education & Science Research Institute, Gwangju, Korea (March 7, 2014).
[41] H. Jeong, "Macroscopic quantumness: Theoretical studies and applications", Invited Talk, Quantum Universe Center Inauguration Conference, Korea Institute for Advanced Study, Seoul, Korea (February 21, 2014).
[42] H. Jeong, "Deterministic quantum teleportation and resource-efficient quantum computation using optical hybrid entanglement", Invited Talk, Asia-Pacific Conference & Workshop on Quantum Information Science 2013, Korea Institute for Advanced Study, Seoul, Korea (December 17, 2013).
[43] H. Jeong, "아주 작은 세계의 신비", Public Lecture, 금요일의 과학터치 강연, Seoul, Korea (December 6, 2013).
[44] H. Jeong, "Deterministic and resource-efficient quantum information processing based on linear optics", Invited Talk, 2nd Korea-United Kingdom joint Workshop on Photonics. Imperial College London, London, United Kingdom (July 12, 2013).
[45] H. Jeong, "From Schrödinger's cat to quantum information processing", Invited Seminar, Department of Electrical and Computer Engineering, Seoul National University, Seoul, Korea (June 5, 2013).
[46] H. Jeong, "Deterministic linear-optics quantum computation based on a hybrid approach", Invited Talk, Asia Pacific workshop on Quantum Information Science 2013, National Institute of Informatics, Tokyo, Japan (May 22, 2013).
[47] H. Jeong, "From Schrödinger's cat to quantum computer", Invited Colloquium, Department of Physics, Hanyang University, Seoul, Korea (May 15, 2013).
[48] H. Jeong, "Bell-state measurement and quantum teleportation using linear optics: two-photon pairs, entangled coherent states, and hybrid entanglement," Invited Talk, International Workshop on Entangled Coherent State and Its Application to Quantum Information Science, Tamagawa University, Tokyo, Japan (November 26, 2012).
[49] H. Jeong, "New optical communication techniques," Invited Talk, CQC2T Theory Workshop on Quantum Measurement and Control, Griffith University, Brisbane, Australia (October 25, 2012).
[50] H. Jeong, "양자물리학이 열어주는 신비한 세계," Public lecture, 금요일에 과학터치, Metropolitan Jungang Library, Daegu, Korea (January 27, 2012).
[51] H. Jeong, "Optical Hybrid Approach to Quantum Computation," Invited Talk, International Meeting on Quantum Foundations and Quantum Information 2011, Seoul National University, Seoul, Korea (November 17, 2011).
[52] H. Jeong, "Macroscopic Quantum Superposition," Invited Talk, The Optical Society of Korea Summer Annual Meeting 2011, Bexco, Busan, Korea (July 14, 2011).
[53] H. Jeong, "From Schrödinger's cat to quantum information processing," Invited Colloquium, Yonsei University, Seoul, Korea (June 8, 2011).
[54] H. Jeong, "양자물리학이 열어주는 신비한 세계," Public lecture, 금요일에 과학터치, Gupo Municipal Library, Busan, Korea (June 3, 2011).
[55] H. Jeong, "Criterion for Macroscopic Quantum Interference," Invited Talk, The Optical Society of Korea Winter Annual Meeting 2011, Sogang University, Seoul, Korea (February 10~11, 2011).
[56] H. Jeong, "물리학 연구의 즐거움 - 미지의 세계에 대한 탐구," Invited Public Lecture, Sogang University, Seoul, Korea (December 7, 2010).
[57] H. Jeong, "From Schrödinger's cat paradox to quantum information technology," Invited Seminar, Pusan University, Busan, Korea (November 26, 2010).
[58] H. Jeong, "From Schrödinger's cat to quantum technology using light," Invited Colloquium, Sungkyunkwan University, Seoul, Korea (November 19, 2010).
[59] H. Jeong, "Macroscopic entanglement and its usefulness in quantum information science," Invited Talk, 5th Asia Pacific Conference on Quantum Information Science, 5'APCQIS, Shanxi Taiyuan, China (August 22~24, 2010).
[60] H. Jeong, "Physical Realization," Invited Talk, Quantum Information Summer School, Hanyang University, Korea (August 9~12, 2010).
[61] H. Jeong, "Quantum information processing with coherent-state qubits in a dissipative environment," Invited Talk, 2010 Atomic and Molecular Physics (AMP2010), Muju, Korea (June 24~25, 2010).
[62] H. Jeong, "Testing quantum mechanics with light," Invited Colloquium, POSTECH, Pohang, Korea (June 9~10, 2010).
[63] H. Jeong, "Schrödinger cat states of light and quantum control," Invited Talk, The 6th International Conference on Advanced Materials and Devices (ICAMD 2009), Jeju, Korea (December10~11, 2009).
[64] H. Jeong, "Testing quantum mechanics with light fields," Invited Talk, KIAS-KAIST Workshop on Quantum Information Science 2009, Korea Institute Advanced Study, Seoul, Korea (August17~21, 2009).
[65] H. Jeong, "Testing quantum mechanics using non-Gaussian light fields," Invited Talk, Pusan National University, Busan, Korea (August 10, 2009).
[66] H. Jeong, "Measurements, decoherence and quantum information," Invited Talk, NIMS Mini-Workshop on Quantum Aspects of Information, Computing, and Cryptography, Division of Computational Science in Mathematics National Institute for Mathematical Sciences (NIMS), Daejeon, Korea (July 3, 2009).
[67] H. Jeong, Mauro Paternostro and Timothy C. Ralph, "Violation of local realism with coarse-grained measurements," Oral Presentation, QTRF5-Quantum Theory: Reconsideration of Foundations, Vaxjo University, Vaxjo, Sweden(June 14~18, 2009).
[68] H. Jeong, "Testing quantum mechanics with light fields," Invited Colloquium, Korea Institute Advanced Study, Seoul, Korea (June 3, 2009).
[69] 정현석, "양자물리학이 열어주는 신비한 세계," 토요과학공개강좌 (초중고생 대상 대중강연), 서울대학교 자연과학대학 28동 302호 대형강의실, 서울대학교 자연과학대학 청소년 과학기술 진흥센터 주최 (May 30, 2009).
[70] H. Jeong, "Exploring the quantum world with light," Invited Talk, National Institute of Information and Communications Technology, Tokyo, Japan (February 26, 2009).
[71] H. Jeong, "Testing quantum mechanics using non-Gaussian light fields," Invited Talk, Invitation to Centre for Quantum Technologies, National University of Singapore, Singapore, (February 6, 2009).
[72] H. Jeong, "Testing quantum mechanics using Gaussian and non-Gaussian light fields," Invited Talk, SPIE Photonics West, San Jose, USA (January 28~29, 2009).
[73] H. Jeong, "Measurement and Decoherence Theory," Invited lectures, 2009 KIAS-SNU Physics Winter Camp , Korea (January 5~6, 2009).
[74] H. Jeong, Alexei Ourjoumtsev, Rosa Tualle-Brouri, Timothy C. Ralph, and Philippe Grangier, "Production of pure and mixed Schrödinger cat states for quantum information processing," Oral Presentation, Fourth Asia Pacific Conference in Quantum Information Science, University of Queensland, Brisbane, Australia (July 03~05, 2008).
[75] H. Jeong, "Generation of Schrödinger cat states and violation of local realism in the classical limit," Invited Talk, The Korean Physical Society Atomic Molecular Physics Division, Atomic Molecular and Optical Physics Workshop, Muju, Korea (June 19, 2008).
[76] H. Jeong, "Generation of Schrödinger cat states and their applications to quantuminformation processing," Oral Presentation, Istituto Nazionale di Ricerca Metrologica (I.N.RI.M), Quantum 2008: IV Workshop ad Memoriam of Carlo Novero, Advances in Foundations of Quantum Mechanics and Quantum Information with Atoms and Photons, Torino, Italy (May 22, 2008).
[77] H. Jeong, "Generation of free-traveling "Schrödinger cat" states and their applications to quantum information processing," Invited Talk, The Korean Physical Society Spring Meeting, Daejeon, Korea (April 17, 2008).
[78] H. Jeong, "From Schrödinger's cat to quantum information technology," Colloquium, Department of Physics and Astronomy, Seoul National University, Seoul, Korea (March 5, 2008).
[79] H. Jeong, "Exploring quantum physics and quantum information science with Schrödinger cat states," Invited Seminar, Department of Physics, Hanyang University, Seoul, Korea (September 19, 2007).
[80] H. Jeong, "From Schrödinger's cat to quantum information technology," Invited Colloquium, Department of Physics, Sogang University, Seoul, Korea (September 17, 2007).
[81] H. Jeong, "Generationof Schrödinger cat states for quantum information processing," Invited Seminar, Department of Physics, Inha University, Incheon, Korea (June 29, 2007).
[82] H. Jeong, "Engineering nonclassical light for quantum information processing," Invited Talk, KIAS-KAIST Workshop on Quantum Information Science, Seoul, Korea (June 25~27, 2007).
[83] H. Jeong, "A story of Schrödinger’s cat," Invited Seminar, Department of Physics, Seoul National University, Seoul, Korea (June 11, 2007).
[84] H. Jeong, "A reconsideration of Schrödinger's cat paradox: Transfer of quantum properties from microscopic superpositions tomacroscopic classical systems," Invited Seminar, Department of Physics, KoreaAdvanced Institute of Science and Technology, Daejeon, Korea (June 8, 2007).
[85] H. Jeong, "Generation of Schrödinger cat states in free-traveling fields from photon number states," Invited Seminar, Graduate School of Information Technology &Telecommunication, Inha University, Incheon, Korea (June 7, 2007).
[86] H. Jeong, A. Ourjoumtsev, A. M. Lance, N. B. Grosse, T. Symul, T. C. Ralph, P. K. Lam and Ph. Grangier, Poster Presentation, "Generation of squeezed Schrödinger's cat states from photon number states," Quantum Noise Workshop, Sunshine Coast, Australia (May 14-18, 2007).
[87] H. Jeong, "Schrödinger's classical cat," Invited Colloquium, University of Queensland, Brisbane, Australia (April 20, 2007).
[88] H. Jeong, A. M. Lance, N. B. Grossed, T. Symul, P. K. Lam and T. C. Ralph, "Generation of Schrödinger cat states for quantum information processing,"Poster Presentation, The Center for Quantum Computer Technology Workshop, Sydney, Australia (February 6–8, 2007).
[89] H. Jeong, A. M. Lance, N. B. Grosse, T. Symul, P.K. Lam and T. C. Ralph, "Conditional quantum state engineering for non-Gaussianstates in free-traveling optical fields," Poster Presentation, 8th International Conference on Quantum Computation, Measurement and Computing, Tsukuba, Japan (November 28 – December 5, 2006).
[90] H. Jeong, "Interactions between quantum and classical systems in optics: Fundamentals and applications," Research Seminar, Queen’s University, Belfast,UK (May 12, 2006).
[91] H. Jeong and T. C. Ralph, "Schrödinger's cat paradox revisited: Transfer of quantum properties from a microscopic superposition to a macroscopic mixed system," Oral Presentation, 3rd International Workshop ad Memoriam of Carlo Novero: Advances in Foundations of Quantum Mechanics and Quantum Information with atoms and photons, Torino, Italy (May 2-5, 2006).
[92] H. Jeong, "Interactions between quantum and classical systems in optics: Fundamentals and applications," Invited Seminar, Hanyang University, Seoul, Korea (16 Feb 2006).
[93] H. Jeong and T. C. Ralph, "Schrödinger cat paradox revisited: Transfer of nonclassical properties from microscopic superpositions to thermal states at high temperatures," Oral Presentation, Quantum Information Theory and Technology Summer School, Belfast, UK, 2005 (August 31 - September 5, 2005).
[94] H. Jeong, M. S. Kim, T. C. Ralph, B. S. Ham,"Generation of macroscopic superposition states with small nonlinearity,"Poster Presentation, Australian Institute of Physics 16th Biennial Congress 2005 (January 31 – February 4, 2005).
[95] H. Jeong, "Optical Schrödinger cat states:Production and application to quantum information processing," Invited Seminar, Hanyang University, Seoul, Korea (May 20, 2004).
[96] H. Jeong, "Conditional production of Schrödinger cat states with inefficient photon detection," Invited Seminar, Korea Institute for Advanced Study, Seoul, Korea (May 17-18, 2004).
[97] H. Jeong, "Generation of optical Schrödinger cat states and quantum information processing," Invited Talk, Advanced Lasers and Their Applications - Workshop 2004, Seoguipo, Korea (May 6-8, 2004).
[98] H. Jeong, "Optical Schrödinger cat states:Production and application to quantum information processing," Invited Seminar, Korea Research Institute of Standards and Science, Daejeon, Korea(May 4, 2004).
[99] H. Jeong, "Quantum information processing using optical coherent states," Invited Seminar, Korea Atomic Energy Research Institute, Daejeon, Korea (May 4, 2004).
[100] H. Jeong, "Quantum information processing using optical coherent states," Invited Seminar, Korea Institute of Science and Technology, Seoul, Korea (May 3, 2004).
[101] H. Jeong, "Conditional production of Schrödinger cat states with inefficient photon detection," Invited Talk, Continuous Variables Quantum Information Processing - Workshop 2004, Veilbronn, Germany(April 2-5, 2004).
[102] H. Jeong, "Quantum information processing using entangled coherent states," Invited Seminar, Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon, Korea (September 15, 2003).
[103] H. Jeong, "Quantum nonlocality test for continuous-variable states based on dichotomic observables," Poster Presentation, Australian Conference on Optics, Lasers and Spectroscopy, Melbourne, Australia (January 1-4, 2003).
[104] H. Jeong and M. S. Kim, "Quantum computation using coherent states," Poster Presentation, The 3rd European Quantum Information and Communication Workshop, Dublin, Ireland (September 15-18, 2002).
[105] H. Jeong, "Quantum information processing with mixed entangled coherent states," Oral Presentation, The 10th UK Conference onthe Foundations of Physics, Belfast, UK (September 10-14, 2001).
[106] D. Wilson, H. Jeong, M. S. Kim and J. Lee, "Quantum nonlocality for a mixedentangled coherent state," Poster Presentation, The 15th Quantum Electronics and Photonics Conference, Glasgow, UK (September 3-6, 2001).