2 citations · 2 across the 9 of their papers we have counts for
10 papers
A threshold for maximal Schmidt number from spectrum
Junhyeong An, Soojoon Lee
The Schmidt number quantifies the dimensionality of entanglement in bipartite quantum states. We investigate when the spectrum of a state on alo…
Beyond the Positive Partial Transpose Squared Conjecture: The Qutrit Case
Junhyeong An, Soojoon Lee
Entanglement swapping is a fundamental operation in quantum repeaters for establishing entanglement between distant parties. The positive partial transpose (PPT) squared conjecture…
Opposite amplitude phase entropy responses at a non Hermitian avoided crossing
Kyu-Won Park, Soojoon Lee, Kabgyun Jeong
Avoided crossings (A.C.) in open resonators arise from non-Hermitian mode interaction, where leakage produces complex spectra and biorthogonal eigenmodes. Intensity-based entropies…
Correlated Entropic Uncertainty as a Signature of Exceptional Points
Kyu-Won Park, Soojoon Lee, Kabgyun Jeong
Non-Hermitian physics has become a fundamental framework for understanding open systems where gain and loss play essential roles, with impact across photonics, quantum science, and…
Chaos-controlled switching between entanglement and coherence
Kyu-Won Park, Soojoon Lee, Kabgyun Jeong
Controlling entanglement and coherence is central to quantum information, yet the two resources often exhibit antagonistic trends and are difficult to optimize within a single plat…
Local Wigner-Mass Maps and Integrated Negativity as Measures of nonclassicality in Quantum Chaotic Billiards
Kyu-won Park, Soojoon Lee, Kabgyun Jeong
The Wigner function is a phase space quasi-probability distribution whose negative regions provide a direct, local signature of nonclassicality. To identify where phase-sensitive s…
Maximal extension on converse monogamy of entanglement for tripartite pure states
Junhyeong An, Soojoon Lee
Unlike classical correlations, entanglement cannot be freely shared among multiple parties. This unique feature of quantum systems is known as the monogamy of entanglement. While i…
Information-theoretic analysis of complex eigenmodes across avoided crossings in open microcavities
Kyu-Won Park, Soojoon Lee, Kabgyun Jeong
Avoided crossings (ACs) are hallmark signatures of mode interaction in quantum and wave systems. Open microcavities whose resonances are naturally described as quasi-normal modes (…
Hidden quantum-classical correspondence in chaotic billiards revealed by mutual information
Kyu-Won Park, Soojoon Lee, Kabgyun Jeong
Avoided level crossings, commonly associated with quantum chaos, are typically interpreted as signatures of eigenstate hybridization and spatial delocalization, often viewed as erg…
Maneuvering measurement-coherence into measurement-entanglement
Ho-Joon Kim, Soojoon Lee
Quantum dynamics governs the transformation of static quantum resources, such as coherence and entanglement, in both quantum states and measurements. Prior studies have established…