45 citations · 540 across the 40 of their papers we have counts for
6 papers · 2 filters
Uncertainty Relations for Approximation and Estimation
Jaeha Lee, Izumi Tsutsui
We present a versatile inequality of uncertainty relations which are useful when one approximates an observable and/or estimates a physical parameter based on the measurement of an…
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…
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…
Quantum phase estimation using path-symmetric entangled states
Su-Yong Lee, Chang-Woo Lee, Jaehak Lee +1
We study the sensitivity of phase estimation using a generic class of path-symmetric entangled states , where an arbitrary state …