3 papers
cond-mat.str-el2025
Coadjoint-orbit bosonization of a Fermi surface in a weak magnetic field
Mengxing Ye, Yuxuan Wang
We present a bosonized effective field theory for a 2d Fermi surface in a weak magnetic field using the coadjoint orbit approach, which was recently developed as a nonlinear bosoni…
cond-mat.str-el2025
Bosonized theory of de Haas-van Alphen quantum oscillation in Fermi liquids
Yuxuan Wang
The de Haas-van Alphen effect (dHvA) of a 2d Fermi liquid remains poorly understood, due to the contribution to the oscillations of grand potential from the os…
cond-mat.str-el2025
Berry Phase and Quantum Oscillation from Multi-orbital Coadjoint-orbit Bosonization
Mengxing Ye, Yuxuan Wang
We develop an effective field theory for a multi-orbital fermionic system using the method of coadjoint orbits for higher-dimensional bosonization. The dynamical bosonic fields are…