3 papers
physics.optics2026
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…
quant-ph2025
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…
quant-ph2025
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…