Hannover 2020 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 29: Quantum Effects (Entanglement and Decoherence)

Q 29.5: Talk

Wednesday, March 11, 2020, 12:00–12:15, f442

Entanglement and complexity in dissipative quantum cellular automata — •Javad Kazemi and Hendrik Weimer — Institut für Theoretische Physik, leibniz universität hannover, Hannover, Germany

We propose a quantum variant of cellular automata (CA) where dissipative quantum jumps enable irreversibility. As a first step, we extend one dimensional elementary CA to a two-rail platform with periodic time-dependent jump operators. Particularly, we focus on the elementary rule 110, which generates complex space-time patterns possibly capable of universal computation. We investigate a long-time coexistence of quantum entanglement and complexity by interpolating between rule 110 and dissipative dynamics preparing a highly entangled Rokhsar-Kivelson state. As a measure of complexity, we use an approach based on the computational compressibility of the measurement results obtained in the CA.