activity
20082026
most citedRevealing nonclassicality beyond Gaussian states via a single marginal distribution

45 citations · 540 across the 40 of their papers we have counts for

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Showing 2020Show all

6 papers · 1 filter

hep-th2020

The magnetic effect on strongly correlated system with two currents near the QCP from holography

Jaeha Lee, Sang-Jin Sin, Geunho Song

We study the magnetic effect in strongly interacting system with two conserved currents near the quantum critical point (QCP). For this purpose, we introduce the hyper-scaling viol…

quant-ph2020

Quantifying coherence of quantum measurements

Kyunghyun Baek, Adel Sohbi, Jaehak Lee +2

In this work we investigate how to quantify the coherence of quantum measurements. First, we establish a resource theoretical framework to address the coherence of measurement and…

quant-ph2020★ 1 cited

Uncertainty Relations of Variances in View of the Weak Value

Jaeha Lee, Keita Takeuchi, Kaisei Watanabe +1

The Schr{ö}dinger inequality is known to underlie the Kennard-Robertson inequality, which is the standard expression of quantum uncertainty for the product of variances of two obse…

quant-ph2020★ 11 cited

Verifying single-mode nonclassicality beyond negativity in phase space

Jiyong Park, Jaehak Lee, Hyunchul Nha

While negativity in phase space is a well-known signature of nonclassicality, a wide variety of nonclassical states require their characterization beyond negativity. We establish a…

quant-ph2020★ 1 cited

A Universal Formulation of Uncertainty Relation for Error and Disturbance

Jaeha Lee, Izumi Tsutsui

We present a universal formulation of uncertainty relation valid for any conceivable quantum measurement and the resultant observation (observer) effect of statistical nature. Owin…

quant-ph2020

Geometric Formulation of Universally Valid Uncertainty Relation for Error

Jaeha Lee, Izumi Tsutsui

We present a new geometric formulation of uncertainty relation valid for any quantum measurements of statistical nature. Owing to its simplicity and tangibility, our relation is un…