Stripe order from the perspective of the Hubbard model
A microscopic understanding of the strongly correlated physics of the cuprates must account
for the translational and rotational symmetry breaking that is present across all cuprate …
for the translational and rotational symmetry breaking that is present across all cuprate …
Enhancing superconductivity by disorder
MN Gastiasoro, BM Andersen - Physical Review B, 2018 - APS
We study two mechanisms for enhancing the superconducting mean-field transition
temperature T c by nonmagnetic disorder in both conventional (sign-preserving gaps) and …
temperature T c by nonmagnetic disorder in both conventional (sign-preserving gaps) and …
Fluctuating intertwined stripes in the strange metal regime of the Hubbard model
Strongly correlated electron systems host a variety of poorly understood correlations in their
high-temperature normal state. Unlike ordered phases defined by order parameters, regions …
high-temperature normal state. Unlike ordered phases defined by order parameters, regions …
Enhanced amplitude for superconductivity due to spectrum-wide wave function criticality in quasiperiodic and power-law random hopping models
X Zhang, MS Foster - Physical Review B, 2022 - APS
We study the interplay of superconductivity and a wide spectrum of critical (multifractal) wave
functions (“spectrum-wide quantum criticality,” SWQC) in the one-dimensional Aubry-André …
functions (“spectrum-wide quantum criticality,” SWQC) in the one-dimensional Aubry-André …
Stripe order manipulated dominant pairing symmetry in the Hubbard model
Understanding the relationship between stripe order and other phenomena, including
antiferromagnetism and superconductivity, is one of the central issues in cuprate …
antiferromagnetism and superconductivity, is one of the central issues in cuprate …
Dynamical mean-field theory study of stripe order and -wave superconductivity in the two-dimensional Hubbard model
TI Vanhala, P Törmä - Physical Review B, 2018 - APS
We use cellular dynamical mean-field theory with extended unit cells to study the ground
state of the two-dimensional repulsive Hubbard model at finite doping. We calculate the …
state of the two-dimensional repulsive Hubbard model at finite doping. We calculate the …
Enhancement of superconductivity in a dirty marginal Fermi liquid
We study superconductivity in a two-dimensional, disordered marginal Fermi liquid. At the
semiclassical level, the transition temperature T c is strongly suppressed because marginal …
semiclassical level, the transition temperature T c is strongly suppressed because marginal …
Stripes and the Emergence of Charge -phase Shifts in Isotropically Paired Systems
The interplay of spin and motional degrees of freedom forms a key element in explaining
stripe formation accompanied by sublattice reversal of local antiferromagnetic ordering in …
stripe formation accompanied by sublattice reversal of local antiferromagnetic ordering in …
Determinant quantum Monte Carlo study of -wave pairing in the plaquette Hubbard hamiltonian
Determinant quantum Monte Carlo (DQMC) is used to determine the pairing and magnetic
response for a Hubbard model built up from four-site clusters—a two-dimensional square …
response for a Hubbard model built up from four-site clusters—a two-dimensional square …
Enhancement of -wave pairing in the striped phase with nearest neighbor attraction
Recent experimental results of angle-resolved photoemission spectroscopy suggested that
an additional strong nearest neighbor attraction in the Hubbard model might be significant …
an additional strong nearest neighbor attraction in the Hubbard model might be significant …