Extracting the field theory description of a quantum many-body system from experimental data

@article{Zache2019ExtractingTF,
  title={Extracting the field theory description of a quantum many-body system from experimental data},
  author={T. V. Zache and T. Schweigler and S. Erne and J. Schmiedmayer and J. Berges},
  journal={arXiv: Quantum Gases},
  year={2019}
}
Quantum field theory is a powerful tool to describe the relevant physics governing complex quantum many-body systems. Here we develop a general pathway to extract the irreducible building blocks of quantum field theoretical descriptions and its parameters purely from experimental data. This is accomplished by extracting the one-particle irreducible (1PI) vertices from which one can construct all observables. To match the capabilities of experimental techniques used in quantum simulation… Expand
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