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QUANTUM SIMULATION Exploring the many-body localization transition in two dimensions

Author(s): Choi, Jae-yoon; Hild, Sebastian; Zeiher, Johannes; Schauss, Peter; Rubio-Abadal, Antonio; et al

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Abstract: A fundamental assumption in statistical physics is that generic closed quantum many-body systems thermalize under their own dynamics. Recently, the emergence of many-body localized systems has questioned this concept and challenged our understanding of the connection between statistical physics and quantum mechanics. Here we report on the observation of a many-body localization transition between thermal and localized phases for bosons in a two-dimensional disordered optical lattice. With our single-site-resolved measurements, we track the relaxation dynamics of an initially prepared out-of-equilibrium density pattern and find strong evidence for a diverging length scale when approaching the localization transition. Our experiments represent a demonstration and in-depth characterization of many-body localization in a regime not accessible with state-of-the-art simulations on classical computers.
Publication Date: 24-Jun-2016
Electronic Publication Date: 24-Jun-2016
Citation: Choi, Jae-yoon, Hild, Sebastian, Zeiher, Johannes, Schauss, Peter, Rubio-Abadal, Antonio, Yefsah, Tarik, Khemani, Vedika, Huse, David A, Bloch, Immanuel, Gross, Christian. (2016). QUANTUM SIMULATION Exploring the many-body localization transition in two dimensions. SCIENCE, 352 (1547 - 1552. doi:10.1126/science.aaf8834
DOI: doi:10.1126/science.aaf8834
ISSN: 0036-8075
EISSN: 1095-9203
Pages: 1547 - 1552
Type of Material: Journal Article
Journal/Proceeding Title: SCIENCE
Version: Author's manuscript

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