%0 Generic %1 joshi2020quantum %A Joshi, Manoj K. %A Elben, Andreas %A Vermersch, Benoît %A Brydges, Tiff %A Maier, Christine %A Zoller, Peter %A Blatt, Rainer %A Roos, Christian F. %D 2020 %K OTOC ions theory %T Quantum information scrambling in a trapped-ion quantum simulator with tunable range interactions %U http://arxiv.org/abs/2001.02176 %X In ergodic many-body quantum systems, locally encoded quantum information becomes, in the course of time evolution, inaccessible to local measurements. This concept of "scrambling" is currently of intense research interest, entailing a deep understanding of many-body dynamics such as the processes of chaos and thermalization. Here, we present first experimental demonstrations of quantum information scrambling on a 10-qubit trapped-ion quantum simulator representing a tunable long-range interacting spin system, by estimating out-of-time ordered correlators (OTOCs) through randomized measurements. We also analyze the role of decoherence in our system by comparing our measurements to numerical simulations and by measuring Rényi entanglement entropies.

@misc{joshi2020quantum, abstract = {In ergodic many-body quantum systems, locally encoded quantum information becomes, in the course of time evolution, inaccessible to local measurements. This concept of "scrambling" is currently of intense research interest, entailing a deep understanding of many-body dynamics such as the processes of chaos and thermalization. Here, we present first experimental demonstrations of quantum information scrambling on a 10-qubit trapped-ion quantum simulator representing a tunable long-range interacting spin system, by estimating out-of-time ordered correlators (OTOCs) through randomized measurements. We also analyze the role of decoherence in our system by comparing our measurements to numerical simulations and by measuring R\'enyi entanglement entropies.}, added-at = {2020-01-14T15:29:04.000+0100}, author = {Joshi, Manoj K. and Elben, Andreas and Vermersch, Benoît and Brydges, Tiff and Maier, Christine and Zoller, Peter and Blatt, Rainer and Roos, Christian F.}, biburl = {https://www.bibsonomy.org/bibtex/2391f5cc1653319d3fe2c4ff6f5a06bab/marschu}, interhash = {d6b0b9e25c94b82cb80fcd7869e164df}, intrahash = {391f5cc1653319d3fe2c4ff6f5a06bab}, keywords = {OTOC ions theory}, note = {cite arxiv:2001.02176Comment: 9 pages and 8 figures}, timestamp = {2020-01-14T15:29:04.000+0100}, title = {Quantum information scrambling in a trapped-ion quantum simulator with tunable range interactions}, url = {http://arxiv.org/abs/2001.02176}, year = 2020 }