Published April 30, 2024 | Version v1
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Data for: A linear response framework for simulating bosonic and fermionic correlation functions on quantum computers

  • 1. North Carolina State University
  • 2. Georgetown University

Description

Response functions are a fundamental aspect of physics; they represent the link between experimental observations and the underlying quantum many-body state. However, this link is often under-appreciated, as the Lehmann formalism for obtaining response functions in linear response has no direct link to experiments. Within the context of quantum computing, and by using a linear response framework, we restore this link by making the experiment an inextricable part of the quantum simulation. This method can be frequency- and momentum-selective, avoids limitations on operators that can be directly measured, and is ancilla-free. As prototypical examples of response functions, we demonstrate that both bosonic and fermionic Green's functions can be obtained, and apply these ideas to the study of a charge-density-wave material on {\emph{ibm\_auckland}}. The linear response method provides a robust framework for using quantum computers to study systems in physics and chemistry.

Notes

The data is a mix of raw text and numpy zip files (which can be opened with numpy).

Funding provided by: United States Department of Energy
ROR ID: https://ror.org/01bj3aw27
Award Number: DE-SC0023231

Funding provided by: Georgetown University
ROR ID: https://ror.org/05vzafd60
Award Number: McDevitt bequest

Methods

The experimental raw-data is obtained from superconducting ion quantum computer. Other data is from computer simulations.

Files

ibm_auckland_data.zip

Files (2.4 MB)

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md5:13fecd37d833a0c7bd62fe66fff50e6d
2.2 MB Preview Download
md5:31c0d5f2a629c66c73e81b8ce8c08118
78.3 kB Preview Download
md5:f3e4bc53804ead4ed5c692512fda1aca
121.2 kB Preview Download
md5:967dfbee05350d0768e6c75a7e466ade
2.8 kB Preview Download

Additional details

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