207 citations · 818 across the 25 of their papers we have counts for
26 papers
Classical Petermann Factor as a Measure of Quantum Squeezing in Photonic Time Crystals
Younsung Kim, Kyungmin Lee, Changhun Oh +3
Photonic time crystals realize a continuum of momentum-resolved SU(1,1) parametric amplifiers. We show that a classical quantity, the Petermann factor of the effective Floquet Bogo…
Simultaneous generation and transfer of mechanical noise squeezing
Mungyeong Jeong, Hyojun Seok, Young-Sik Ra +1
Optomechanical interactions between mechanical oscillators and an electromagnetic field induce controllable modifications in mechanical fluctuation. When multiple mechanical oscill…
Efficient detection of spectrally multimode squeezed light through optical parametric amplification
Mahmoud Kalash, Ui-Nyung Han, Young-Sik Ra +1
Multimode squeezed light is a key resource for high-dimensional photonic quantum technologies, enabling applications in quantum-enhanced sensing, quantum communication, and quantum…
Recovering quantum entanglement after its certification
Hyeon-Jin Kim, Ji-Hyeok Jung, Kyung-Jun Lee +1
Entanglement is a crucial quantum resource with broad applications in quantum information science. For harnessing entanglement in practice, it is a prerequisite to certify the enta…
Continuous-Variable Nonclassicality Detection under Coarse-Grained Measurement
Chan Roh, Young-Do Yoon, Jiyong Park +1
Coarse graining is a common imperfection of realistic quantum measurement, obstructing the direct observation of quantum features. Under highly coarse-grained measurement, we exper…
Frequency multiplexed entanglement for continuous-variable quantum key distribution
Olena Kovalenko, Young-Sik Ra, Yin Cai +4
Quantum key distribution with continuous variables already uses advantageous high-speed single-mode homodyne detection with low electronic noise at room temperature. Together with…