4 papers
Emergent gauge flux in mixed QED with flavor chemical potential: application to magnetized U(1) Dirac spin liquids
Chuang Chen, Urban F. P. Seifert, Kexin Feng +3
We design a lattice model of a "mixed" U(1) gauge field coupled to fermions with a flavor chemical potential and solve it with large-scale determinant quantum Monte Carlo simulatio…
Chirality and quasi-long-range order in finite-flux Gutzwiller states for magnetized frustrated magnets
Wen O. Wang, Urban F. P. Seifert, Oleg A. Starykh +1
We study Gutzwiller-projected wavefunctions for triangular-lattice U(1) Dirac spin liquids in a Zeeman field, where we allow the U(1) gauge field to develop a gauge flux, resulting…
Emergent magnetism and spin liquids in an extended Hubbard description of moiré bilayers
Zhenhao Song, Urban F. P. Seifert, Leon Balents +1
Motivated by twisted transition metal dichalcogenides (TMDs), we study an extended Hubbard model with both on-site and off-site repulsive interactions, in which Mott insulating sta…
Distinct Optical Excitation Mechanisms of a Coherent Magnon in a van der Waals Antiferromagnet
Clifford J. Allington, Carina A. Belvin, Urban F. P. Seifert +9
The control of antiferromagnets with ultrashort optical pulses has emerged as a prominent field of research. Tailored laser excitation can launch coherent spin waves at terahertz f…