Selected Research Highlights

• Quantum Metrological Power of Continuous-Variable Quantum Networks (PRL 2022)
  • Hyukgun Kwon, Youngrong Lim, Liang Jiang, Hyunseok Jeong, and Changhun Oh, "Quantum Metrological Power of Continuous-Variable Quantum Networks," Phys. Rev. Lett. 128, 180503 (2022).
  
• Resource-efficient and highly loss-tolerant quantum computing (PRL 2020)
  • Srikrishna Omkar, Yong Siah Teo, and Hyunseok Jeong, "Resource-Efficient Topological Fault-Tolerant Quantum Computation with Hybrid Entanglement of Light," Phys. Rev. Lett. 125, 060501 (2020).
  • S. Omkar, Y. S. Teo, Seung-Woo Lee, and H. Jeong, "Highly photon-loss-tolerant quantum computing using hybrid qubits," Phys. Rev. A 103, 032602 (2021).
  
• Negativity of quasiprobability as a nonclassicality monotone (PRL 2020)
  • K. C. Tan, S. Choi, and H. Jeong, "Negativity of Quasiprobability Distributions as a Measure of Nonclassicality," Phys. Rev. Lett. 124, 110404 (2020).
  
• Teleporting securely secret quantum information shared by multiple parties (PRL 2020)
  • S. M. Lee, S.-W. Lee, H. Jeong, and H. S. Park, "Quantum Teleportation of Shared Quantum Secret," Phys. Rev. Lett. 124, 060501 (2020).
  
• Keynote Talk at 2020 International Workshop on Quantum Computing (New Taipei City, 2020)
  • H. Jeong, "Towards resource-efficient and fault-tolerant quantum computation with light" (video available).
• Efficient computation of the Bayesian credible region (PRL 2019)
  • C. Oh, Y. S. Teo, and H. Jeong, "Probing Bayesian Credible Regions Intrinsically: A Feasible Error Certification for Physical Systems," Phys. Rev. Lett. 123, 040602 (2019).
  
• Compressively characterizing any unknown quantum source adaptively with heavily-reduced resources and no spurious or ad hoc prior assumptions, with experiments conducted with structured photons with angular momentum (PRL 2019)
  • D. Ahn, Y. S. Teo, H. Jeong, F. Bouchard, F. Hufnagel, E. Karimi, D. Koutný, J. Řeháček, Z. Hradil, G. Leuchs, and L.L. Sánchez-Soto, "Adaptive Compressive Tomography with No a priori Information" Phys. Rev. Lett. 122, 100404 (2019).
  
• Discovering the Meaning of Nonclassicality as a Quantifiable Resource for Quantum Metrology (PRL 2019)
  • H. Kwon, K. C. Tan, T. Volkoff, and H. Jeong, "Nonclassicality as a Quantifiable Resource for Quantum Metrology," Phys. Rev. Lett. 122, 040503 (2019).
  
• Revealing the Relation between Entanglement and Coherence (PRL 2018)
  • K. C. Tan and H. Jeong, "Entanglement as the symmetric portion of correlated coherence," Phys. Rev. Lett. 121, 220401 (2018).
• Clock-Work Trade-Off Relation for Coherence in Quantum Thermodynamics - Relating two different ??clock and work ??resources of coherence in quantum thermodynamics that is reminiscent of the time-energy uncertainty relation. (PRL 2018)
  • H. Kwon, H. Jeong, D. Jennings, B. Yadin, and M. S. Kim, "Clock-Work Trade-Off Relation for Coherence in Quantum Thermodynamics," Phys. Rev. Lett. 120, 150602 (2018).
  
• Quantifying the coherence between coherent states - A measure that ties quantum coherence inextricably to the nonclassicality of light (PRL 2017, Editor's suggestion)
  • K.-C. Tan, T. Volkoff, H. Kwon, and H. Jeong, "Quantifying the Coherence between Coherent States," Phys. Rev. Lett. 119, 190405 (2017).
  • Article for non-specialists
    • Physicists unify quantum coherence with nonclassicality of light (PHYS.ORG)
  
• Deterministic Bell Measurement and Teleportation for Multiphoton Qubits (PRL 2015)
  • S.-W. Lee, K. Park, T. C. Ralph, and H. Jeong, "Nearly Deterministic Bell Measurement for Multiphoton Qubits and its Application to Quantum Information Processing," Phys. Rev. Lett. 114, 113603 (2015).
  
• Entangling quantum and classical states of light - hybrid entanglement (Nature Photonics 2014, Cover Article for July Issue.)
  • H. Jeong, A. Zavatta, M. Kang, S.-W. Lee, L. S. Costanzo, S. Grandi, T. C. Ralph, and M. Bellini, "Generation of hybrid entanglement of light," Nature Photonics 8, 564 (2014).
  • Article for non-specialists
    • Entanglement between particle and wave-like states of light resembles Schrodinger's cat experiment(PSYSORG.COM)
  
• Quantum-to-classical transition explained by fuzziness of measurement references (PRL 2014)
  • H. Jeong, Y. Lim, and M. S. Kim, "Coarsening Measurement References and the Quantum-to-Classical Transition," Phys. Rev. Lett. 112, 010402 (2014).
  • Physics Plaza - 새로운 연구결과 소개 (Physics & High Technology)
  • Article for non-specialists
    • Quantum-to-classical transition may be explained by fuzziness of measurement references (PHYSORG.COM)
  
• Quantum tele-amplification (Nature Photonics 2013)
  • J. S. Neergaard-Nielsen, Y. Eto, C.-W. Lee, H. Jeong, and M. Sasaki, "Quantum tele-amplification with a continuous-variable superposition state," Nature Photonics 7, 439 (2013).
  
• Deterministic teleportation and quantum computation using hybrid qubits (PRA 2013)
  • S.-W. Lee and H. Jeong, "Near-deterministic quantum teleportation and resource-efficient quantum computation using linear optics and hybrid qubits," Phys. Rev. A. 022326 (2013).
  
• Quantification of 'Schrödinger's-cattiness' (PRL 2011)
  • C.-W. Lee and H. Jeong, "Quantification of Macroscopic Quantum Superpositions within Phase Space," Phys. Rev. Lett. 106, 220401 (2011).
  • Physics Plaza - 새로운 연구결과 소개 (Physics & High Technology)
  • Article for non-specialists
    • Physicists seek to quantify macroscopic quantum states (PHYSORG.COM)
  
• The quantum world revealed by a classical measurement (PRL 2009)
  • H. Jeong, M. Paternostro, and T. C. Ralph, "Failure of local realism revealed by extremely coarse-grained measurements," Phys. Rev. Lett. 102, 060403 (2009).
  • Physics Plaza - 새로운 연구결과 소개 (Physics & High Technology)
  • Articles for non-specialist
    • It's Easier to Observe the Failure of Local Realism than Previously Thougt (PHYSORG.COM)
    • 양자역학의 난제 - 국소적 사실론 (KISTI NDSL)
  
• Bosonic commutation relation demonstrated using single photon interference (PRL 2008, PRL 2009)
  • M. S. Kim, H. Jeong, A. Zavatta, V. Parigi, and M. Bellini, "Scheme for proving the bosonic commutation relation using single-photon interference,"
    Phys. Rev. Lett. 101, 260401 (2008).
  • Zavatta, V. Parigi, M.-S. Kim, H. Jeong, and M. Bellini, "Experimental demonstration of bosonic commutation relation via superpositions of quantum operations on thermal light fields," Phys. Rev. Lett. 103, 140406 (2009).
  
• Experimental implementation of "Schrödinger cat" states of light (Nature 2007)
  • A. Ourjoumtsev, H. Jeong, R. Tualle-Brouri and Ph. Grangier, "Generation of optical 'Schrödinger cats' from photon number states," Nature 448, 784 (2007).
  • Experimental generation of optical "Schrodinger cats" from photon number states (SPIE proceeding, invited paper)
  • Article for non-specialists
    • Quantum light beams good for fast technology (PHYSORG.COM)
  
• Schrödinger's "hot" cat (PRL 2006)
  • H. Jeong and T. C. Ralph, "Transfer of nonclassical properties from a microscopic superposition to macroscopic thermal states in the high temperature limit,
    Phys. Rev. Lett. 97, 100401 (2006).
• Schemes to generate Schrödinger cat states of light (PRA(R) 2004, PRA(R) 2004)
  • H. Jeong, M.-S. Kim, T. C. Ralph and B. S. Ham, "Generation of macroscopic superposition states with small nonlinearity," Phys. Rev. A 70, 061801(R) (2004).
  • A.P. Lund, H. Jeong, T. C. Ralph and M. S. Kim, "Conditional production of superpositions of coherent states with inefficient photon detection," Phys. Rev. A 70, 020101(R) (2004).
• Quantum information processing using Schrödinger cat states (PRA 2001, PRA 2002)
  • H. Jeong and M.-S. Kim, "Efficient quantum computation using coherent states," Phys. Rev. A65, 042305 (2002).
  • H. Jeong, M.-S. Kim and J. Lee, "Quantum-information processing for a coherent superposition state via a mixed entangled coherent," Phys. Rev. A 64, 052308 (2001).

Research Interests

• Foundations of quantum theory
• Quantum information theory
• Quantum nonlocality and entanglement
• Theoretical quantum optics
• Optical quantum information processing
• Generation and detection of non-classical light