Quantum Electrodynamical Bloch Theory with Homogeneous Magnetic Fields.

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ID: 101807
2019
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Abstract
We propose a solution to the problem of Bloch electrons in a homogeneous magnetic field by including the quantum fluctuations of the photon field. A generalized quantum electrodynamical (QED)-Bloch theory from first principles is presented. In the limit of vanishing quantum fluctuations, we recover the standard results of solid-state physics: the fractal spectrum of the Hofstadter butterfly. As a further application, we show how the well-known Landau physics is modified by the photon field and that Landau polaritons emerge. This shows that our QED-Bloch theory does not only allow us to capture the physics of solid-state systems in homogeneous magnetic fields but also novel features that appear at the interface of condensed matter physics and quantum optics.
Reference Key
rokaj2019quantumphysical Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Rokaj, Vasil;Penz, Markus;Sentef, Michael A;Ruggenthaler, Michael;Rubio, Angel;
Journal physical review letters
Year 2019
DOI
10.1103/PhysRevLett.123.047202
URL
Keywords
cuprates electron–phonon coupling insulator–metal transition ultrafast optics

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