Erlangen 2022 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 61: Quantum Optics (Miscellaneous)
Q 61.17: Poster
Thursday, March 17, 2022, 16:30–18:30, P
Squeezing and Correlations in an Atom Chain — •Kasper Kusmierek1, Sahand Mahmoodian2, and Klemens Hammerer1 — 1Institute for Theoretical Physics and Institute for Gravitational Physics (Albert-Einstein-Institute), Leibniz University Hannover, Germany — 2ARC Future Fellow, University of Sydney, Australia
We study squeezing and correlations in an atomic array weakly coupled to a waveguide at large optical depth. The atoms are treated as two level atoms with a ground and excited state. The waveguide supports just modes traveling in one direction such that the whole system constitutes a cascaded system. Properties of light, like squeezing, can be derived via correlations of atoms. Since the degrees of freedom scale exponentially with the number of atoms, at large optical depth the system can not be solved exactly. We use the cumulant expansion method to cut correlations at arbitrary order and compare the resulting properties of the light field at different truncation orders.