11 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…
Extreme volume monogamy via bound-state engineering
Wen-Jie Zhang, Jun-Hong An
Quantum steering ellipsoid (QSE) provides a faithful representation of a two-qubit state. When extended to tripartite systems, the steerability from a trusted party to different re…
Protection of quantum steering ellipsoids in non-Markovian environments
Wen-Jie Zhang, Jun-Hong An
Quantum steering ellipsoids (QSEs) provide a geometric representation, within the Bloch picture, of all possible states to which one qubit can be steered through measuring another…
Strongly coupled giant-atom waveguide quantum electrodynamics
Zong-Wei Wu, Jun-Hong An
Describing systems of superconducting atoms coupled to a continuum of photonic modes at multiple separated locations in a waveguide, waveguide quantum electrodynamics (QED) with gi…
Restoring Quantum Superiority of Noisy Quantum Illumination
Wei Wu, Jun-Hong An
Quantum illumination uses quantum entanglement as a resource to enable higher-resolution detection of low-reflectivity targets than is possible with classical techniques. This revo…
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…
Quantum router of silicon-vacancy centers via a diamond waveguide
Wen-Jie Zhang, Xi Yan, Jun-Hong An
As a key component of quantum networks, the quantum router distributes quantum information among different quantum nodes. The silicon-vacancy (SiV) center in diamond offers a promi…
Noise-Resilient Quantum Reinforcement Learning
Jing-Ci Yue, Jun-Hong An
As a branch of quantum machine learning, quantum reinforcement learning (QRL) aims to solve complex sequential decision-making problems more efficiently and effectively than its cl…
Protecting spin squeezing from decoherence
Lin Jiao, Han Pu, Jun-Hong An
As a crucial resource in the field of quantum metrology, spin squeezing can facilitate highly precise measurements that surpass the limitations imposed by classical physics. Howeve…
PIMutation: Exploring the Potential of PIM Architecture for Quantum Circuit Simulation
Dongin Lee, Enhyeok Jang, Seungwoo Choi +3
Quantum circuit simulations are essential for the verification of quantum algorithms on behalf of real quantum devices. However, the memory requirements for such simulations grow e…