12 citations · 44 across the 9 of their papers we have counts for
4 papers · 1 filter
Qubit Regularization and Qubit Embedding Algebras
Hanqing Liu, Shailesh Chandrasekharan
Qubit regularization is a procedure to regularize the infinite dimensional local Hilbert space of bosonic fields to a finite dimensional one, which is a crucial step when trying to…
A spin-charge flip symmetric fixed point in 2+1d with massless Dirac fermions
Hanqing Liu
We study a quantum phase transition of electrons on a two-dimensional square lattice. Our lattice model preserves the full symmetry of free spin- Dirac…
Hamiltonian models of lattice fermions solvable by the meron-cluster algorithm
Hanqing Liu, Shailesh Chandrasekharan, Ribhu K. Kaul
We introduce a half-filled Hamiltonian of spin-half lattice fermions that can be studied with the efficient meron-cluster algorithm in any dimension. As with the usual bipartite ha…
Quantum Critical Phenomena in an Fermion Chain
Hanqing Liu
We construct a fermionic lattice model containing interacting spin- fermions with an symmetry. In addition the model contains a chiral symmetry w…