Perturbation Independent Decay of the Loschmidt Echo in a Many-Body System

When a qubit or spin interacts with others under a many-body Hamiltonian, the information it containsprogressively scrambles. Here, nuclear spins of an adamantane crystal are used as a quantum simulator tomonitor such dynamics through out-of-time-order correlators, while a Loschmidt echo (LE) asses...

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Bibliographic Details
Main Authors: Wei, K. X., Cappellaro, Paola
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:English
Published: American Physical Society (APS) 2020
Subjects:
Online Access:https://hdl.handle.net/1721.1/124332