Berlin 2024 – scientific programme
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QI: Fachverband Quanteninformation
QI 31: Decoherence and Open Quantum Systems
QI 31.11: Talk
Friday, March 22, 2024, 12:15–12:30, HFT-FT 101
Multi-photon realization of open quantum systems in integrated waveguide arrays — •Sholeh Razavian1,2,3, Jasmin Meinecke1,2,4, and Harald Weinfurter1,2,3 — 1Department fur Physik, Ludwig-Maximilians-Universitat, Munich, Germany — 2Max-Planck-Institute for quantum optics, Garching, Germany — 3Munich Center for Quantum Science and Technology, München, Germany — 4Institut für Festkörperphysik, Technische Universität Berlin, Germany
It is important to thoroughly examine the interaction between a quantum system and its surroundings, as understanding the stability of such systems will foster their applicability for extending previous studies toward the investigation of decoherence in multi-party quantum systems. Evanescently coupled, photonic waveguides with birefringent properties turned out to enable the simulation of open quantum systems and decoherence effects.
A quantum simulation of single and two-photon coupling to a low dimensional discrete environment by sending into the arrays of waveguides on a chip has been studied. This allows us to explicitly observe the amount of information stored in the polarization degrees of freedom as a system and the path degrees of freedom as an environment. This interaction creates quantum correlation at various times during non-Markovian evolution and causes polarization decoherence along the waveguide arrays.
Keywords: integrated waveguide arrays; open quantum system; decoherence