activity
20012023
most citedA balanced homodyne detector for high-rate Gaussian-modulated coherent-state quantum key distribution

130 citations · 233 across the 12 of their papers we have counts for

collaborators

12 papers

quant-ph2023

Engineering sub-Poisson light in a simple mirror and beam splitter system

Sun-Hyun Youn

Vacuum fluctuation, which is the intrinsic nature of an electric field can be measured via homodyne detection. Moreover, electric field intensity fluctuation are also related to va…

quant-ph2020

Hong-Ou-Mandel interference depends on the method of the erasing the beam path information

Sun-Hyun Youn

We study how the information of the beam path is related to the Hong-Ou-Mandel interference with two pulsed light sources. Through a simple model in which two photons in the form o…

physics.class-ph2018★ 1 cited

Can a skier make a circular turn without any active movement?

Sun Hyun Youn

A skier's motion was analyzed by a simple model consist of point mass and a single rod connected to a single ski plate. We studied the conditions for the stable ski turn as fun…

physics.optics2018

Entanglement Measure of the planar-transverse classical light field

Sun-Hyun Youn

Classical light fields are considered physical examples of nonquantum entanglement\cite{Eberly2011}. We apply concurrence and Schmidt approach to evaluate the degree of entanglemen…

physics.class-ph2016★ 2 cited

Beyond the Kinetic Chain Process in a Stroke using a Triple Pendulum Model

Sun-Hyun Youn

The efficient way to transfer input potential energy to the kinetic energy of a racket or bat was analyzed by two coupled harmonic triple pendulums. We find the most efficient way…

quant-ph2015★ 1 cited

Conditional Generation Scheme for Entangled Vacuum Evacuated Coherent States by Mixing Two Coherent Beams with a Squeezed Vacuum State

Sun-Hyun Youn

Conditions to generate high-purity entangled vacuum-evacuated coherent states ( were studied for two cascade-placed beam splitters, with one squeezed state i…

physics.class-ph2015★ 4 cited

Double pendulum model for tennis stroke including a collision process

Sun-Hyun Youn

By means of adding a collision process between the ball and racket in double pendulum model, we analyzed the tennis stroke. It is possible that the speed of the rebound ball does n…

physics.optics2014★ 2 cited

Conditional Generation Scheme for a High-fidelity Yurke-Stoler States by Mixing Two Coherent Beams with Squeezed Vacuum State

Sun-Hyun Youn

The numerical conditions to generate a high-fidelity Yurke-Stoler states ()were found for two cascade-placed beam splitters with one squeezed state input and two…

quant-ph2010★ 130 cited

A balanced homodyne detector for high-rate Gaussian-modulated coherent-state quantum key distribution

Yue-Meng Chi, Bing Qi, Wen Zhu +5

We discuss excess noise contributions of a practical balanced homodyne detector in Gaussian-modulated coherent-state (GMCS) quantum key distribution (QKD). We point out the key gen…

quant-ph2009★ 40 cited

Instant single-photon Fock state tomography

S. R. Huisman, Nitin Jain, S. A. Babichev +4

Heralded single photons are prepared at a rate of ~100 kHz via conditional measurements on polarization-nondegenerate biphotons produced in a periodically poled KTP crystal. The si…

physics.optics2008★ 52 cited

Spatial and temporal characterization of a Bessel beam produced using a conical mirror

K. B. Kuntz, B. Braverman, S. H. Youn +3

We experimentally analyze a Bessel beam produced with a conical mirror, paying particular attention to its superluminal and diffraction-free properties. We spatially characterized…

quant-ph2001★ 1 cited

Decoherence-induced wave packet splitting

Young-Tak Chough, Hyunchul Nha, Sang Wook Kim +2

We provide an intuitive interpretation of the optical Stern-Gerlach effect (OSGE) in the dressed-state point of view. We also analyze the effect of atomic damping in an experiment…