ICMT News

New chiral crystalline material exhibits new quasiparticles

Author: Laura Hennemann for the Paul Scherrer Institute and Siv Schwink for Illinois Physics
Published on 5/7/2019

StatPhys27-Travel Award

Published on 4/4/2019

New algorithm could help find new physics

Inverse method takes wave functions and solves for Hamiltonians

Author: Siv Schwink
Published on 8/1/2018

Yuxuan Wang and Eduardo Fradkin in Physical Review B, an editor's suggestion: 'Pair density waves in superconducting vortex halos'

We analyze the interplay between a d-wave uniform superconducting and a pair-density-wave (PDW) order parameter in the neighborhood of a vortex. We develop a phenomenological nonlinear sigma model, solve the saddle-point equation for the order-parameter configuration, and compute the resulting local density of states in the vortex halo. The intertwining of the two superconducting orders leads to a charge density modulation with the same periodicity as the PDW, which is twice the period of the charge density wave that arises as a second harmonic of the PDW itself. We discuss key features of the charge density modulation that can be directly compared with recent results from scanning tunneling microscopy and speculate on the role PDW order may play in the global phase diagram of the hole-doped cuprates.
Published on 5/16/2018

A virus-bacteria coevolutionary 'arms race' solves the diversity paradox by 'Killing the Winner'

U of I Swanlund Professor of Physics Nigel Goldenfeld (left) works with colleague Chi Xue (right) at the Carl R. Woese Institute for Genomic Biology. Photo credit: University of Illinois at Urbana-Champaign.
Author: Siv Schwink
Published on 3/15/2018

Researchers demonstrate existence of new form of electronic matter

Researchers Kitt Peterson, Taylor Hughes, Wladimir Benalcazar and Gaurav Bahl are the first to demonstrate a new phase of matter called quadrupole topological insulators that was recently predicted using theoretical physics.
Author: Lois Yoksoulian for the Illinois News Bureau
Published on 3/15/2018