749 citations · 7.8k across the 130 of their papers we have counts for
10 papers · 1 filter
Photoisomerization in a Dissipative Environment
Chang-Qin Wu, Jian-Xin Li, Dung-Hai Lee
We investigate photoisomerization (PI), the shape change of a molecule upon photoabsorption, in a dissipative environment using a simple spin-boson model. We identify two classes o…
Domain wall type defects as anyons in phase space
Alexander Seidel, Dung-Hai Lee
We discuss how the braiding properties of Laughlin quasi-particles in quantum Hall states can be understood within a one-dimensional formalism we proposed earlier. In this formalis…
An Index Theorem for the Majorana Zero Modes in Chiral P-Wave Superconductors
Sumanta Tewari, S. Das Sarma, Dung-Hai Lee
We show that the Majorana fermion zero modes in the cores of odd winding number vortices of a 2D -paired superconductor is due to an index theorem. This theorem is analog…
New family of models for incompressible quantum liquids in
Chyh-Hong Chern, Dung-Hai Lee
Through Haldane's construction, the fractional quantum Hall states on a two-sphere was shown to be the ground states of {\it one-dimensional} SU(2) spin Hamiltonians. In this Lette…
Checkerboard charge density wave and pseudogap in high- cuprates
Jian-Xin Li, Chang-Qin Wu, Dung-Hai Lee
We consider the scenario where a 4-lattice constant, rotationally symmetric charge density wave (CDW) is present in the underdoped cuprates. We prove a theorem that puts strong con…
Phonons and d-wave pairing in the two-dimensional Hubbard model
Carsten Honerkamp, Henry C. Fu, Dung-Hai Lee
We analyze the influence of phonons on the d-wave pairing instability in the Hubbard model on the two-dimensional square lattice at weak to moderate interaction U, using a function…
The Electronic States of Two Oppositely doped Mott Insulators Bilayers
Tiago C. Ribeiro, Alexander Seidel, Jung Hoon Han +1
We study the effect of Coulomb interaction between two oppositely doped low-dimensional tJ model systems. We exactly show that, in the one-dimensional case, an arbitrarily weak int…
Abelian and Non-abelian Hall Liquids and Charge Density Wave: Quantum Number Fractionalization in One and Two Dimensions
Alexander Seidel, Dung-Hai Lee
Previously we have demonstrated that, on a torus, the abelian quantum hall liquid is adiabatically connected to a charge density wave as the smaller dimension of the torus is varie…
Stabilizing Superconductivity in Nanowires by Coupling to Dissipative Environments
Henry C. Fu, Alexander Seidel, John Clarke +1
We present a theory for a finite-length superconducting nanowire coupled to an environment. We show that in the absence of dissipation quantum phase slips always destroy supercondu…
On the Dichotomy between the Nodal and Antinodal Excitations in High-temperature Superconductors
Henry C. Fu, Dung-Hai Lee
Angle-resolved photoemission data on optimally- and under-doped high temperature superconductors reveal a dichotomy between the nodal and antinodal electronic excitations. In this…