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.
%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
}