77 citations · 99 across the 2 of their papers we have counts for
5 papers
Experimental realisation of a delayed-choice quantum walk
Youn-Chang Jeong, Carlo Di Franco, Hyang-Tag Lim +2
Many paradoxes of quantum mechanics come from the fact that a quantum system can possess different features at the same time, such as in wave-particle duality or quantum superposit…
Experimental implementation of a fully controllable depolarizing quantum operation
Youn-Chang Jeong, Jong-Chan Lee, Yoon-Ho Kim
The depolarizing quantum operation plays an important role in studying the quantum noise effect and implementing general quantum operations. In this work, we report a scheme which…
Ultra-low noise single-photon detector based on Si avalanche photodiode
Yong-Su Kim, Youn-Chang Jeong, Sebastien Sauge +2
We report operation and characterization of a lab-assembled single-photon detector based on commercial silicon avalanche photodiodes (PerkinElmer C30902SH, C30921SH). Dark count ra…
Experimental demonstration of decoherence suppression via quantum measurement reversal
Jong-Chan Lee, Youn-Chang Jeong, Yong-Su Kim +1
Taming decoherence is essential in realizing quantum computation and quantum communication. Here we experimentally demonstrate that decoherence due to amplitude damping can be supp…
Effects of depolarizing quantum channels on BB84 and SARG04 quantum cryptography protocols
Youn-Chang Jeong, Yong-Su Kim, Yoon-Ho Kim
We report experimental studies on the effect of the depolarizing quantum channel on weak-pulse BB84 and SARG04 quantum cryptography. The experimental results show that, in real wor…