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Quantum Entropy Information Measures

Measuring the Renyi entropy of a two-site Fermi-Hubbard model on a trapped ion quantum computer

arXiv
Authors: Norbert M. Linke, Sonika Johri, Caroline Figgatt, Kevin A. Landsman, Anne Y. Matsuura, Christopher Monroe

Year

2017

Paper ID

2562

Status

Preprint

Abstract Read

~2 min

Abstract Words

97

Citations

N/A

Abstract

The efficient simulation of correlated quantum systems is the most promising near-term application of quantum computers. Here, we present a measurement of the second Renyi entropy of the ground state of the two-site Fermi-Hubbard model on a 5-qubit programmable quantum computer based on trapped ions. Our work illustrates the extraction of a non-linear characteristic of a quantum state using a controlled-swap gate acting on two copies of the state. This scalable measurement of entanglement on a universal quantum computer will, with more qubits, provide insights into many-body quantum systems that are impossible to simulate on classical computers.

Why This Paper Matters

  • This paper contributes to the Quantum Entropy & Information Measures research area in the Quantum Articles archive.
  • It adds a 2017 reference point for readers tracking recent quantum research.
  • The efficient simulation of correlated quantum systems is the most promising near-term application of quantum computers.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1712.08581 [2] arXiv https://arxiv.org/abs/1712.08581 [3] Publisher https://arxiv.org/abs/1712.08581

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