60 citations · 70 across the 4 of their papers we have counts for
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High performance imaging of Yb atom in shallow clock-magic tweezer by alternating dual-tone narrowline cooling
Yunheung Song, Kangheun Kim, Jeong Ho Han +2
We demonstrate imaging Yb single atoms in clock-magic tweezers of 759.4 nm wavelength, with above 99.9% fidelity and survival. We use alternating dual-tone narrowline imagi…
Rydberg atom entanglements in the weak coupling regime
Hanlae Jo, Yunheung Song, Minhyuk Kim +1
We present an entanglement scheme for Rydberg atoms using the van der Waals interaction phase induced by Ramsey-type pulsed interactions. This scheme realizes not only controlled p…
Coherent and dissipative dynamics of entangled few-body systems of Rydberg atoms
Woojun Lee, Minhyuk Kim, Hanlae Jo +2
Experimentally observed quantum few-body dynamics of neutral atoms excited to a Rydberg state are numerically analyzed with Lindblad master equation formalism. For this, up to five…
Leakage suppression by ultrafast pulse shaping
Hanlae Jo, Yunheung Song, Jaewook Ahn
We consider the leakage suppression problem of a three-level system in which the first two levels are the qubit system and the third, weakly-coupled to the second, is the leakage s…
Subpicosecond rotations of atomic clock states
Yunheung Song, Han-gyeol Lee, Hyosub Kim +2
We demonstrate subpicosecond-time-scale population transfer between the pair of hyperfine ground states of atomic rubidium using a single laser-pulse. Our scheme utilizes the geome…
Single-laser-pulse implementation of arbitrary ZYZ rotations of an atomic qubit
Han-gyeol Lee, Yunheung Song, Jaewook Ahn
Arbitrary rotation of a qubit can be performed with a three-pulse sequence; for example, ZYZ rotations. However, this requires precise control of the relative phase and timing betw…