Subspace Variational Quantum Simulation: Fidelity Lower Bounds as Measures of Training Success
Seung Park, Dongkeun Lee, Jeongho Bang, Hoon Ryu, Kyunghyun Baek
arXiv preprint arXiv:2509.06360 (2025)

Robustness measures for quantifying nonlocality
Kyunghyun Baek, Junghee Ryu, Jinhyoung Lee,
New J. Phys. 27, 053001 (2025)

Resource-compact time-optimal quantum computation
Taewan Kim, Kyunghyun Baek, Yongsoo Hwang, Jeongho Bang,
Quantum Information Processing 24 (7), 193 (2025)

Quantum Simulation for Dynamical Transition Rates in Open Quantum Systems
Robson Christie, Kyunghyun Baek, Jeongho Bang, Jaewoo Joo
arXiv preprint arXiv:2412.17229 (2024)

T-depth-optimized Quantum Search with Quantum Data-access Machine (Co-first author),
Jung Jun Park, Kyunghyun Baek, MS Kim, Hyunchul Nha, Jaewan Kim, Jeongho Bang,
Quantum Sci. Technol. 9, 015011 (2024)

Variational quantum state discriminator for supervised machine learning,
Dongkeun Lee, Kyunghyun Baek, Joonsuk Huh, Daniel K. Park,
Quantum Sci. Technol. 9, 015017 (2024)

Global optimization in variational quantum algorithms via dynamic tunneling method,
Seung Park, Kyunghyun Baek, Seungjin Lee, Mahn-Soo Choi,
New J. Phys. 26, 073053 (2024)

Quantum superposing algorithm for quantum encoding,
Jaehee Kim, Taewan Kim, Kyunghyun Baek, Yongsoo Hwang, Joonsuk Huh, Jeongho Bang,
Physica Scripta 99 (11), 115110 (2024)

Generalized Euler angles for a unitary control of the Hamiltonian system,
Seungjin Lee, Kyunghyun Baek, Jeongho Bang,
arXiv:2304.14624 (2023)

Method and apparatus for processing and measuring photonic qubit signals,
Min Su Kim, In Gyoo Kim, Ki Won Moon, Jeong Ho Bang, Kyunghyun Baek, Jung Jin Ju,
US Patent App. 18/105,080 (2023)

Fundamental limits on concentrating and preserving tensorized quantum resources,
Jaehak Lee, Kyunghyun Baek, Jiyong Park, Jaewan Kim, Hyunchul Nha,
Phys. Rev. Res. 4, 043070

Quantifying non-Gaussianity of a quantum state by the negative entropy of quadrature distributions,
Jiyong Park, Jaehak Lee, Kyunghyun Baek, Hyunchul Nha,
Phys. Rev. A 104, 032415

Average fidelity and fidelity deviation in noisy quantum teleportation,
Wooyeong Song, Junghee Ryu, Kyunghyun Baek, Jeongho Bang,
J. Korean Phys. Soc. 78, 496

Quantifying coherence of quantum measurements,
Kyunghyun Baek, Sohbi Adel, Jaehak Lee, Jaewan Kim, Hyunchul Nha,
New J. Phys. 22, 093019

Faithful measure of quantum non-Gaussianity via quantum relative entropy,
Jiyong Park, Jaehak Lee, Kyunghyun Baek, Se-Wan Ji, Hyunchul Nha,
Phys. Rev. A 100, 012333

Necessary and sufficient condition for joint measurability,
Jeongwoo Jae, Kyunghyun Baek, Junghee Ryu, Jinhyoung Lee,
Phys. Rev. A 100, 032113

Entropic Uncertainty Relations via Direct-Sum Majorization Relation for Generalized Measurements,
Kyunghyun Baek, Hyunchul Nha, Wonmin Son,
Entropy 21, 270

Non-Gaussianity and entropy-bounded uncertainty relations: Application to detection of non-Gaussian entangled states,
Kyunghyun Baek, Hyunchul Nha,
Phys. Rev. A 98, 042314

Unsharpness of generalized measurement and its effects in entropic uncertainty relations,
Kyunghyun Baek, Wonmin Son,
Sci. Rep. 6, 30228

Entropic uncertainty relations for successive generalized measurements,
Kyunghyun Baek, Wonmin Son,
Mathematics 4(2), 41

Optimized entropic uncertainty for successive projective measurements,
Kyunghyun Baek, Tristan Farrow, Wonmin Son,
Phys. Rev. A 89, 032108