2 papers
quant-ph2020
A Formalism Useful to Study Beyond Squeezing in Non-linear Quantum Optics
Noriaki Aibara, Naoaki Fujimoto, So Katagiri +3
A general formalism is given in quantum optics within a ring cavity, in which a non-linear material is stored. The method is Feynman graphical one, expressing the transition amplit…
hep-th2019
Beyond Squeezing à la Virasoro Algebra
So Katagiri, Akio Sugamoto, Koichiro Yamaguchi +1
The generalization of squeezing is realized in terms of the Virasoro algebra. The higher-order squeezing can be introduced through the higher-order time-dependent potential, in whi…