Characteristics of Nonstatic Quantum Light Waves: The Principle for Wave Expansion and Collapse

Nonstatic quantum light waves arise in time-varying media general. However, from a recent report, it turned out that nonstatic can also appear static environment where the electromagnetic parameters of medium do not vary time. Such Fock states exhibit belly and node turn periodically graphic their evolution. This is due to wave expansion collapse quadrature space, which manifest unique nonstaticity wave. The principle for elucidated rigorous analyses basic are dissipative amplifying ones. outcome be interpreted terms coefficient quadratic exponent exponential function appearing eigenfunction; if imaginary part positive, expands, whereas collapses when negative. Using this principle, we further analyze novel properties complicated time behaviors, i.e., case only undergo periodical change nodes bellies but envelopes gradual dissipation/expansion as well.