@article{ISI:000448596500001,
 abstract = {We study the particle-hole asymmetry of the scattering rate in strongly
correlated electron systems by examining the cubic omega(3) and omega
T-2 terms in the imaginary part of the self-energy of the Anderson
impurity model. We show that the sign is opposite in the weak-coupling
and strong-coupling limits, explaining the differences found in
theoretical approaches taking the respective limits as the starting
points. The sign change in fact precisely delineates the crossover
between the weak- and strong-correlation regimes of the model. For weak
interaction U the sign reversal occurs for small values of the doping
delta = 1- n, while for interaction of order U approximate to 2 Gamma,
Gamma being the hybridization strength, the crossover curve rapidly
shifts to the large-doping range. This curve, based on the impurity
dynamics, is genuinely different from other crossover curves defined
through impurity thermodynamic and static properties.},
 article-number = {161121},
 author = {Zitko, R. and Krishnamurthy, H. R. and Shastry, B. Sriram},
 doi = {10.1103/PhysRevB.98.161121},
 eissn = {2469-9969},
 issn = {2469-9950},
 journal = {PHYSICAL REVIEW B},
 month = {OCT 29},
 number = {16},
 orcid-numbers = {Shastry, Sriram/0000-0002-8665-5061},
 times-cited = {0},
 title = {Reversal of particle-hole scattering-rate asymmetry in the Anderson
impurity model},
 unique-id = {ISI:000448596500001},
 volume = {98},
 year = {2018}
}