ON THE RELATIONSHIP BETWEEN CHARGE ORDERING AND THE FERMI ARCS OBSERVED IN UNDERDOPED HIGH SUPERCONDUCTORS

We address the origin of the recently discovered close correspondence between the charge ordering wave vectors and the momentum-space separation between the tips of the Fermi arcs seen in angle-resolved photoemission measurements in underdoped high-temperature superconducting cuprates.This observation has been interpreted as a signature of charge o

Due to the slow convergence rates and reliance on global information, distributed optimization methods, such as alternating direction method of multipliers (ADMM) and distributed gradient descent method (DGDM), have been difficult to meet the needs of solutions for the large-scale distributed system.In this paper, a distributed multi-step gradient