283 citations · 1.9k across the 20 of their papers we have counts for
20 papers
SU(N) Fermi liquid at finite temperature
Chi-Ho Cheng, S. -K. Yip
We consider the thermodynamic potential of an N component Fermi gas with a short range interaction obeying SU(N) symmetry. We analyze especially the part of that depends on…
Pseudospin bases for a model of Cu:BiSe
Sungkit Yip
We consider the construction of pseudospin bases for a time-reversal and inversion symmetric system, illustrated by a model for Cu:BiSe. Different methods and bases are com…
Quantum Critical Spin-2 Chain with Emergent SU(3) Symmetry
Pochung Chen, Zhi-Long Xue, I. P. McCulloch +3
We study the quantum critical phase of a SU(2) symmetric spin-2 chain obtained from spin-2 bosons in a one-dimensional lattice. We obtain the scaling of the entanglement entropy an…
Models of Superconducting Cu:Bi2Se3: single versus two-band description
S. -K. Yip
Starting from a model Hamiltonian for the normal state of the topological insulator Bi2Se3, we construct a pseudospin basis for the single-particle wavefunctions. Considering weak…
Dimerized and trimerized phases for spin-2 Bosons in a one-dimensional optical lattice
Pochung Chen, Zhi-Long Xue, I. P. McCulloch +2
We study the phase diagram for spin-2 bosons loaded in a one-dimensional optical lattice. By using non-Abelian density matrix renormalization group (DMRG) method we identify three…
Wavefunction topology of two-dimensional time-reversal symmetric superconductors
S. -K. Yip
We discuss the topology of the wavefunctions of two-dimensional time-reversal symmetric superconductors. We consider (a) the planar state, (b) a system with broken up-down reflecti…