250 citations · 812 across the 12 of their papers we have counts for
9 papers · 1 filter
Lattice chiral symmetry from bosons in 3+1d
Zhiyao Lu, Sahand Seifnashri, Shu-Heng Shao
We present a solvable Hamiltonian that realizes an exact lattice chiral symmetry. Nielsen-Ninomiya-type no-go theorems are evaded by using lattice bosons rat…
Exactly Solvable 1+1d Chiral Lattice Gauge Theories
Sahand Seifnashri
Using the modified Villain lattice Hamiltonian formulation of the 1+1d compact boson theory, we construct exactly solvable abelian chiral lattice gauge theories in two spacetime di…
Symmetry Transmutation and Anomaly Matching
Nathan Seiberg, Sahand Seifnashri
We explore a situation where a global symmetry of the ultraviolet (UV) theory does not act faithfully on the local infrared (IR) degrees of freedom, but instead acts effectively as…
Asymptotic density of states in 2d CFTs with non-invertible symmetries
Ying-Hsuan Lin, Masaki Okada, Sahand Seifnashri +1
It is known that the asymptotic density of states of a 2d CFT in an irreducible representation of a finite symmetry group is proportional to . We show how this s…
Higher Gauging and Non-invertible Condensation Defects
Konstantinos Roumpedakis, Sahand Seifnashri, Shu-Heng Shao
We discuss invertible and non-invertible topological condensation defects arising from gauging a discrete higher-form symmetry on a higher codimensional manifold in spacetime, whic…
Construction of two-dimensional topological field theories with non-invertible symmetries
Tzu-Chen Huang, Ying-Hsuan Lin, Sahand Seifnashri
We construct the defining data of two-dimensional topological field theories (TFTs) enriched by non-invertible symmetries/topological defect lines. Simple formulae for the three-po…