168 citations · 1.1k across the 45 of their papers we have counts for
3 papers · 1 filter
Gaussian private quantum channel with squeezed coherent states
Kabgyun Jeong, Jaewan Kim, Su-Yong Lee
While the objective of conventional quantum key distribution (QKD) is to secretly generate and share the classical bits concealed in the form of maximally mixed quantum states, tha…
Quantum information approach to Bose-Einstein condensation of composite bosons
Su-Yong Lee, Jayne Thompson, Sadegh Raeisi +2
We consider composite bosons (cobosons) comprised of two elementary particles, fermions or bosons, in an entangled state. First, we show that the effective number of cobosons impli…
Quantum phase estimation using a multi-headed cat state
Su-Yong Lee, Chang-Woo Lee, Hyunchul Nha +1
It was recently shown that an entangled coherent state, which is a superposition of two different coherent states, can surpass the performance of noon state in estimating an unknow…