Manipulating quantum materials with quantum light

@article{Kiffner2019ManipulatingQM,
  title={Manipulating quantum materials with quantum light},
  author={M. Kiffner and Jonathan R. Coulthard and Frank Schlawin and Arzhang Ardavan and Dieter Jaksch},
  journal={Physical Review B},
  year={2019}
}
We show that the macroscopic magnetic and electronic properties of strongly correlated electron systems can be manipulated by coupling them to a cavity mode. As a paradigmatic example we consider the Fermi-Hubbard model and find that the electron-cavity coupling enhances the magnetic interaction between the electron spins in the ground-state manifold. At half filling this effect can be observed by a change in the magnetic susceptibility. At less than half filling, the cavity introduces a next… 

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