Journal
PHYSICAL REVIEW LETTERS
Volume 114, Issue 23, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.236402
Keywords
-
Categories
Funding
- FWF through the PhD School Building Solids for Function [W1243]
- research unit FOR 1346 of the DFG [I 610]
- MINECO [MAT2012-37263-C02-01]
- Simons Foundation
- Austrian Science Fund (FWF) [W1243, I610] Funding Source: Austrian Science Fund (FWF)
- Austrian Science Fund (FWF) [I 610] Funding Source: researchfish
Ask authors/readers for more resources
We demonstrate how to identify which physical processes dominate the low-energy spectral functions of correlated electron systems. We obtain an unambiguous classification through an analysis of the equation of motion for the electron self-energy in its charge, spin, and particle-particle representations. Our procedure is then employed to clarify the controversial physics responsible for the appearance of the pseudogap in correlated systems. We illustrate our method by examining the attractive and repulsive Hubbard model in two dimensions. In the latter, spin fluctuations are identified as the origin of the pseudogap, and we also explain why d-wave pairing fluctuations play a marginal role in suppressing the low-energy spectral weight, independent of their actual strength.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available