45 citations · 116 across the 5 of their papers we have counts for
5 papers
Spiral phases and two-particle bound states from a systematic low-energy effective theory for magnons, electrons, and holes in an antiferromagnet
C. Brügger, C. P. Hofmann, F. Kämpfer +3
We have constructed a systematic low-energy effective theory for hole- and electron-doped antiferromagnets, where holes reside in momentum space pockets centered at $(\pm\fracπ{2a}…
Systematic Low-Energy Effective Field Theory for Electron-Doped Antiferromagnets
C. Brügger, C. P. Hofmann, F. Kämpfer +3
In contrast to hole-doped systems which have hole pockets centered at , in lightly electron-doped antiferromagnets the charged quasiparticles resid…
Two-Hole Bound States from a Systematic Low-Energy Effective Field Theory for Magnons and Holes in an Antiferromagnet
C. Brügger, F. Kämpfer, M. Moser +2
Identifying the correct low-energy effective theory for magnons and holes in an antiferromagnet has remained an open problem for a long time. In analogy to the effective theory for…
From the Hubbard Model to a Systematic Low-Energy Effective Field Theory for Magnons and Holes in an Antiferromagnet
C. Brügger, F. Kämpfer, M. Moser +2
The low-energy physics of antiferromagnets is governed by their Goldstone bosons -- the magnons -- and it is described by a low-energy effective field theory. In analogy to baryon…
Systematic Low-Energy Effective Theory for Magnons and Charge Carriers in an Antiferromagnet
F. Kampfer, M. Moser, U. -J. Wiese
By electron or hole doping quantum antiferromagnets may turn into high-temperature superconductors. The low-energy dynamics of antiferromagnets are governed by their Nambu-Goldston…