218 citations · 2.3k across the 75 of their papers we have counts for
7 papers · 1 filter
Quantum walk as a simulator of nonlinear dynamics: Nonlinear Dirac equation and solitons
Chang-Woo Lee, Paweł Kurzyński, Hyunchul Nha
Quantum walk (QW) provides a versatile tool to study fundamental physics and also to make a variety of practical applications. We here start with the recent idea of {\it nonlinear}…
Quantum steering of Gaussian states via non-Gaussian measurements
Se-Wan Ji, Jaehak Lee, Jiyong Park +1
Quantum steering---a strong correlation to be verified even when one party or its measuring device is fully untrusted---not only provides a profound insight into quantum physics bu…
Steering Criteria via Covariance Matrices of Local Observables in Arbitrary Dimensional Quantum Systems
Se-Wan Ji, Jaehak Lee, Jiyong Park +1
We derive steerability criteria applicable for both finite and infinite dimensional quantum systems using covariance matrices of local observables. We show that these criteria are…
Realization of near-deterministic arithmetic operations and quantum state engineering
Mark Um, Junhua Zhang, Dingshun Lv +6
Quantum theory is based on a mathematical structure totally different from conventional arithmetic. Due to the symmetric nature of bosonic particles, annihilation or creation of si…
Testing nonclassicality and non-Gaussianity in phase space
Jiyong Park, Junhua Zhang, Jaehak Lee +5
We theoretically propose and experimentally demonstrate a nonclassicality test of single-mode field in phase space, which has an analogy with the nonlocality test proposed by Banas…
Classical capacity of Gaussian communication under a single noisy channel
Jaehak Lee, Se-Wan Ji, Jiyong Park +1
A long-standing problem on the classical capacity of bosonic Gaussian channels has recently been resolved by proving the minimum output entropy conjecture. It is also known that th…