4 papers
A field theory approach to Breit-type Hamiltonians in gapped Dirac systems
Xinhong Zhou, T. H. Hansson, Varsha Subramanyan +1
We develop a path-integral-based field theory for deriving Breit-type low-energy Hamiltonians for gapped Dirac systems coupled to both vector and axial gauge fields. Treating the m…
On the relation between fractional charge and statistics
T. H. Hansson, Rodrigo Arouca, Thomas Klein Kvorning
We revisit an argument, originally given by Kivelson and RoÄek, for why the existence of fractional charge necessarily implies fractional statistics. In doing so, we resolve a con…
Quantum Hall effect in a chiral cavity
Liu Yang, Gabriel Cardoso, Thors Hans Hansson +1
We investigate the influence of quantum fluctuations in a chiral cavity on the quantum Hall (QH) state, extending previous studies of QH liquids in linearly polarized cavities. Usi…
Cavity Quantum Hall Hydrodynamics
Gabriel Cardoso, Liu Yang, Thors Hans Hansson +1
Motivated by recent experiments, we study the coupling of quantum Hall (QH) hydrodynamics to quantum electrodynamics (QED) within a resonance cavity. In agreement with experimental…