Berlin 2015 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 71: Correlated Electrons: Poster Session

TT 71.71: Poster

Mittwoch, 18. März 2015, 15:00–18:00, Poster B

Investigating disorder effects in fabricating photonic quantum simulators on a kagome geometry: PEPS versus exact-diagonalization analysis — •Amin Hosseinkhani1,2, Ali T. Rezakhani3, and Hamed Saberi4,51Peter Grunberg Institute (PGI-2), Forschungszentrum Jülich, D-52425 Jülich, Germany — 2JARA-Institute for Quantum Information, RWTH Aachen University, D-52056 Aachen, Germany — 3Department of Physics, Sharif University of Technology, Tehran 14588, Iran — 4Department of Optics, Faculty of Science, Palacký University, 17. listopadu 12, 77146 Olomouc, Czech Republic — 5Department of Physics and Center for Optoelectronics and Photonics Paderborn (CeOPP), University of Paderborn, D-33098 Paderborn, Germany

The energy spectra and photon transfer dynamics of a unit kagome cell is being explored by using a flexible numerical framework. A projected-entangled pair state (PEPS) ansatz to the many-photon wave function allows us to gain a detailed understanding of the effects of undesirable disorder in fabricating well-controlled and scalable photonic quantum simulators. The correlation functions associated with the propagation of two-photon excitations reveal intriguing interference patterns peculiar to the kagome geometry. Our results justify the use of the proposed PEPS technique for addressing the role of disorder in such quantum simulators and promises sophisticated numerical machinery for yet further explorations of the scalability of the resulting kagome arrays.

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