954 citations · 2.7k across the 16 of their papers we have counts for
8 papers · 1 filter
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…
Screening, Kohn anomaly, Friedel oscillation, and RKKY interaction in bilayer graphene
E. H. Hwang, S. Das Sarma
We calculate the screening function in bilayer graphene (BLG) both in the intrinsic (undoped) and the extrinsic (doped) regime within random phase approximation, comparing our resu…
Incommensurate superfluidity of bosons in a double-well optical lattice
Vladimir M. Stojanovic, Congjun Wu, W. Vincent Liu +1
We study bosons in the first excited Bloch band of a double-well optical lattice, recently realized at NIST. By calculating the relevant parameters from a realistic nonseparable la…