464 citations · 1.8k across the 23 of their papers we have counts for
5 papers · 1 filter
Flux period, spin gap, and pairing in the one-dimensional t-J-J'-model
Alexander Seidel, Dung-Hai Lee
Using the factorization of the wavefunction in the t-J-J'-model at small exchange couplings, we demonstrate the connection between the existence of a spin gap and an hc/2e flux per…
Geometric effects on T-breaking in p+ip and d+id superconductors
Joel E. Moore, Dung-Hai Lee
Superconducting order parameters that change phase around the Fermi surface modify Josephson tunneling behavior, as in the phase-sensitive measurements that confirmed order in…
Mott Insulators Without Symmetry Breaking
Dung-Hai Lee, Jon Magne Leinaas
We present theoretical models, in one and two space dimensions, that exhibit Mott insulating ground states at fractional occupations without any symmetry breaking. The Hamiltonians…
Role of interference in MM-wave driven DC transport in two dimensional electron gas
Dung-Hai Lee, Jon Magne Leinaas
In this paper we point out that in addition to the density of states effect proposed in Ref.\cite{durst,anderson} one should consider the effect of constructive interference betwee…
Doped t-J Model on a Triangular Lattice: Possible Application to NaCoOH0 and NaTiO
Qiang-Hua Wang, Dung-Hai Lee, Patrick A. Lee
We report the finding of time-reversal-symmetry-breaking superconducting ground state in the slave-boson mean-field theory for the t-J model on triangular la…