Repulsive photons in a quantum nonlinear medium
Sign Up to like & getrecommendations! Published in 2019 at "Nature Physics"
DOI: 10.1038/s41567-020-0917-6
Abstract: The ability to control strongly interacting light quanta (photons) is of central importance in quantum science and engineering 1 – 5 . Recently it was shown that such strong interactions can be engineered in specially… read more here.
Keywords: repulsive photons; strongly interacting; photons quantum; quantum nonlinear ... See more keywords
A definition of the asymptotic phase for quantum nonlinear oscillators from the Koopman operator viewpoint.
Sign Up to like & getrecommendations! Published in 2022 at "Chaos"
DOI: 10.1063/5.0088559
Abstract: We propose a definition of the asymptotic phase for quantum nonlinear oscillators from the viewpoint of the Koopman operator theory. The asymptotic phase is a fundamental quantity for the analysis of classical limit-cycle oscillators, but… read more here.
Keywords: quantum nonlinear; nonlinear oscillators; asymptotic phase; phase quantum ... See more keywords
Quantum nonlinear optics without photons
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DOI: 10.1103/physreva.96.023818
Abstract: Spontaneous parametric down-conversion is a well-known process in quantum nonlinear optics in which a photon incident on a nonlinear crystal spontaneously splits into two photons. Here we propose an analogous physical process where one excited… read more here.
Keywords: quantum; optics without; optics; nonlinear optics ... See more keywords
Quantum nonlinear phononics route towards nonequilibrium materials engineering: Melting dynamics of a ferrielectric charge density wave
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.165138
Abstract: Negative nonlinear electron-phonon coupling involving an infrared-active phonon mode can lead to an instability towards the formation of a polar lattice distortion with ferrielectric (FE) moments accompanied by an electronic charge-density wave (CDW). Analyzing a… read more here.
Keywords: density wave; charge density; nonlinear phononics; quantum nonlinear ... See more keywords