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- University of Maryland, College ParkUS611 papers
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Showing 2018 · cond-mat.str-elShow all
3 papers · 2 filters
cond-mat.str-el2018★ 70 cited
Product Spectrum Ansatz and the Simplicity of Thermal States
John Martyn, Brian Swingle
Calculating the physical properties of quantum thermal states is a difficult problem for classical computers, rendering it intractable for most quantum many-body systems. A quantum…
cond-mat.str-el2018
Scrambling dynamics across a thermalization-localization quantum phase transition
Subhayan Sahu, Shenglong Xu, Brian Swingle
We study quantum information scrambling, specifically the growth of Heisenberg operators, in large disordered spin chains using matrix product operator dynamics to scan across the…
cond-mat.str-el2018★ 114 cited
Locality, Quantum Fluctuations, and Scrambling
Shenglong Xu, Brian Swingle
Thermalization of chaotic quantum many-body systems under unitary time evolution is related to the growth in complexity of initially simple Heisenberg operators. Operator growth is…