168 citations · 420 across the 6 of their papers we have counts for
10 papers · 1 filter
Splitting of Majorana modes due to intervortex tunneling in a p + ip superconductor
Meng Cheng, Roman M. Lutchyn, Victor Galitski +1
We consider a two-dimensional px+i py superconductor in the presence of multiple vortices, which support zero-energy Majorana fermion states in their cores. Intervortex tunnelings…
Electron Spin Dephasing due to Hyperfine Interactions with a Nuclear Spin Bath
L. Cywinski, W. M. Witzel, S. Das Sarma
We investigate pure dephasing decoherence (free induction decay and spin echo) of a spin qubit interacting with a nuclear spin bath. While for infinite magnetic field B the only de…
Spontaneous Particle-Hole Symmetry Breaking in the Fractional Quantum Hall Effect
Michael R. Peterson, Kwon Park, S. Das Sarma
The essence of the fractional quantum Hall effect is believed to be well captured by the Moore-Read Pfaffian (or anti-Pfaffian) description. However, an important mystery r…
superfluid from s-wave interactions of fermionic cold atoms
Chuanwei Zhang, Sumanta Tewari, Roman Lutchyn +1
Two-dimensional () superfluids/superconductors offer a playground for studying intriguing physics such as quantum teleportation, non-Abelian statistics, and topologic…
Contrasting Behavior of the 5/2 and 7/3 Fractional Quantum Hall Effect in a Tilted Field
C. R. Dean, B. A. Piot, P. Hayden +4
Using a tilted field geometry, the effect of an in-plane magnetic field on the even denominator nu = 5/2 fractional quantum Hall state is studied. The energy gap of the nu = 5/2 st…
Ground-state of graphene in the presence of random charged impurities
Enrico Rossi, S. Das Sarma
We calculate the carrier density dependent ground state properties of graphene in the presence of random charged impurities in the substrate taking into account disorder and intera…