395 citations · 1.7k across the 15 of their papers we have counts for
4 papers · 1 filter
Time-reversal symmetry breaking by a density-wave state in underdoped cuprate superconductors
Sumanta Tewari, Chuanwei Zhang, Victor M. Yakovenko +1
It was proposed that the density-wave state (DDW) may be responsible for the pseudogap behavior in the underdoped cuprates. Here we show that the admixture of a smal…
Testable signatures of quantum non-locality in a two-dimensional chiral p-wave superconductor
Sumanta Tewari, Chuanwei Zhang, S. Das Sarma +2
A class of topological excitations -- the odd-winding-number vortices -- in a spinless 2D chiral p-wave superconductor trap Majorana fermion states in the vortex cores…
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…
Nonlinear 2D Spin Susceptibility in a Finite Magnetic Field: Spin-Polarization Dependence
Ying Zhang, S. Das Sarma
By theoretically calculating the interacting spin susceptibility of a two-dimensional electron system in the presence of finite spin polarization, we show that the extensively empl…