Quantum simulations with ultracold atoms in optical lattices

C Gross, I Bloch - Science, 2017 - science.org
Quantum simulation, a subdiscipline of quantum computation, can provide valuable insight
into difficult quantum problems in physics or chemistry. Ultracold atoms in optical lattices …

Pairing mechanism in Fe-based superconductors

A Chubukov - Annu. Rev. Condens. Matter Phys., 2012 - annualreviews.org
I review recent works on the symmetry and the structure of the superconducting gap in Fe-
based superconductors (FeSCs) and on the underlying pairing mechanism in these …

Electronic instabilities of kagome metals: saddle points and Landau theory

T Park, M Ye, L Balents - Physical Review B, 2021 - APS
We study electronic instabilities of a kagome metal with a Fermi energy close to saddle
points at the hexagonal Brillouin zone face centers. Using parquet renormalization group …

Unconventional superconductivity and density waves in twisted bilayer graphene

H Isobe, NFQ Yuan, L Fu - Physical Review X, 2018 - APS
We study electronic ordering instabilities of twisted bilayer graphene around the filling of n=
2 electrons per supercell, where correlated insulator state and superconductivity have been …

Spin-and density-resolved microscopy of antiferromagnetic correlations in Fermi-Hubbard chains

M Boll, TA Hilker, G Salomon, A Omran, J Nespolo… - Science, 2016 - science.org
The repulsive Hubbard Hamiltonian is one of the foundational models describing strongly
correlated electrons and is believed to capture essential aspects of high-temperature …

Anomalous Hall crystals in rhombohedral multilayer graphene. II. General mechanism and a minimal model

T Soejima, J Dong, T Wang, T Wang, MP Zaletel… - Physical Review B, 2024 - APS
We propose a minimal “three-patch model” for the anomalous Hall crystal (AHC), a
topological electronic state that spontaneously breaks both time-reversal symmetry and …

Chiral superconductivity from repulsive interactions in doped graphene

R Nandkishore, LS Levitov, AV Chubukov - Nature Physics, 2012 - nature.com
Chiral superconductivity, which breaks time-reversal symmetry, can exhibit a wealth of
fascinating properties that are highly sought after for nanoscience applications. We identify …

Pioneer countries in the transition to alternative transport fuels: Comparison of ethanol programmes and policies in Brazil, Malawi and Sweden

FX Johnson, S Silveira - Environmental Innovation and Societal Transitions, 2014 - Elsevier
Efforts to develop alternative transport fuels and vehicles are found in countries varying
tremendously in their level of economic development. In this paper, we compare the …

Magnetism, superconductivity, and spontaneous orbital order in iron-based superconductors: Which comes first and why?

AV Chubukov, M Khodas, RM Fernandes - Physical Review X, 2016 - APS
Magnetism and nematic order are the two nonsuperconducting orders observed in iron-
based superconductors. To elucidate the interplay between them and ultimately unveil the …

Topological insulators and Mott physics from the Hubbard interaction

S Rachel, K Le Hur - Physical Review B—Condensed Matter and Materials …, 2010 - APS
We investigate the Hubbard model on the honeycomb lattice with intrinsic spin-orbit
interactions as a paradigm for two-dimensional topological band insulators in the presence …