Hannover 2016 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 33: Quantum Effects: Entanglement and Decoherence I
Q 33.2: Talk
Wednesday, March 2, 2016, 11:15–11:30, f442
Entanglement through complex photonic environments — •Sven Moritz Hein1,2, Camille Aron2,3,4, Hakan E. Türeci2, Andreas Knorr1, and Alexander Carmele1 — 1Institut für theoretische Physik, Technische Universität Berlin, Hardenbergstraße 36, 10623 Berlin, Deutschland — 2Department of Electrical Engineering, Princeton University, Princeton, NJ 08544, USA — 3Laboratoire de Physique Théorique, École Normale Supérieure, CNRS, 24 rue Lhomond, 75005 Paris, France — 4Instituut voor Theoretische Fysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
Creating, controlling and stabilizing nonclassical entangled states is one of the main challenges in current quantum optics. A promising approach is to couple the quantum-optical system to a non-Markovian reservoir to induce frequency-dependent dissipative dynamics. We present two approaches that utilize non-Markovian reservoirs to create and stabilize qubit entanglement. One is based upon time-delayed quantum-coherent feedback [1], which acts upon single qubits in a quantum network [2]. The second one uses resonant Raman scattering to counteract dephasing in qubits coupled to cavity modes, based upon a recent proposal of Aron et al. [3].
[1] Pyragas, K., Phys. Lett. A 6, 421–428 (1992)
[2] Hein, S., et al., Phys. Rev. A 91, 052321 (2015)
[3] Aron, C. et al., Phys. Rev. A 90, 062305 (2014)