Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.12202/6480
Title: | Experimental Detection of the Correlation R ́enyi Entropy in the Central Spin Model. |
Authors: | Santos, Lea F. Niknam, Mohamad Cory, David G. 0000-0001-9400-2709 |
Keywords: | R ́enyi Entropy |
Issue Date: | Nov-2020 |
Citation: | Santos, Lea F., Niknam, Mohamed, and Cory, David G.(November 2020). Experimental Detection of the Correlation R ́enyi Entropy in the Central Spin Model. https://arxiv.org/pdf/2011.13948.pdf |
Abstract: | We propose and experimentally measure an entropy that quantifies the volume of correlations among qubits.The experiment is carried out on a nearly isolated quantum system composed of a central spin coupled and initially uncorrelated with 15 other spins. Due to the spin-spin interactions, information flows from the central spin to the surrounding ones forming clusters of multi-spin correlations that grow in time. We design a nuclear magnetic resonance experiment that directly measures the amplitudes of the multi-spin correlations and use them to compute the evolution of what we call correlation R ́enyi entropy. This entropy keeps growing even after the equilibration of the entanglement entropy. We also analyze how the saturation point and the timescale for the equilibration of the correlation R ́enyi entropy depend on the system size |
Description: | Scholarly article / Open-Access. |
URI: | https://arxiv.org/pdf/2011.13948.pdf https://hdl.handle.net/20.500.12202/6480 |
Appears in Collections: | Stern College for Women -- Faculty Publications |
Files in This Item:
File | Description | Size | Format | |
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Santos Experimental Detection Nov2020 2011.13948.pdf | 931.57 kB | Adobe PDF | View/Open |
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