Środowiskowe Seminarium z Informacji i Technologii Kwantowych

Nonclassical states of light are created when light propagates through a nonlinear medium. For example, laser light can become quantum squeezed in a material whose refractive index depends on the intensity of light (optical Kerr effect). Although this effect is qualitatively captured by a simple anharmonic oscillator model, an accurate quantitative prediction of the quantum correlations requires careful modelling of the light-matter interaction, together with the capability to solve or simulate the model in a way that doesn’t neglect quantum effects. In this talk I will discuss the use of stochastic methods derived from generalised phase-space representations for simulations of light-matter interactions. I will focus on the example of propagation of light in optical fibre, which has been found to be an efficient means of squeezing light and which has potential for creating non-Gaussian correlations.