269 citations · 742 across the 17 of their papers we have counts for
17 papers
Decay of Ultralight Axion Condensates
Joshua Eby, Michael Ma, Peter Suranyi +1
Axion particles can form macroscopic condensates, whose size can be galactic in scale for models with very small axion masses eV, and which are sometimes referred t…
Quantum Critical Point at Finite Doping in the 2D Hubbard Model: A Dynamical Cluster Quantum Monte Carlo Study
N. S. Vidhyadhiraja, A. Macridin, C. Sen +2
We explore the Matsubara quasiparticle fraction and the pseudogap of the two-dimensional Hubbard model with the dynamical cluster quantum Monte Carlo method. The character of the q…
XXZ and Ising Spins on the Triangular Kagome Lattice
Dao-Xin Yao, Yen Lee Loh, Erica W. Carlson +1
The recently fabricated two-dimensional magnetic materials Cu9X2(cpa)6.xH2O (cpa=2-carboxypentonic acid; X=F,Cl,Br) have copper sites which form a triangular kagome lattice (TKL),…
Mott Insulator - Superfluid Transitions in a Two Band Model at Finite Temperature and Possible Application to Supersolid 4He
Huai-Bin Zhuang, Michael Ma, Xi Dai +1
We study Mott insulator - superfluid transition in a two-band boson Hubbard model, which can be mapped onto a spin-1/2 XY model with spins coupled to an additional Ising degree of…
Theory for supersolid He
Xi Dai, Michael Ma, Fu-Chun Zhang
Although both vacancies and interstitial have relatively high activation energies in the normal solid, we propose that a lower energy bound state of a vacancy and an interstitial m…
Resonant spin Hall conductance in quantum Hall systems lacking bulk and structural inversion symmetry
Shun-Qing Shen, Yun-Juan Bao, Michael Ma +2
Following a previous work [Shen, Ma, Xie and Zhang, Phys. Rev. Lett. 92, 256603 (2004)] on the resonant spin Hall effect, we present detailed calculations of the spin Hall conducta…