75 citations · 152 across the 7 of their papers we have counts for
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cond-mat.supr-con2004★ 34 cited
Ward identity and optical-conductivity sum rule in the d-density wave state
L. Benfatto, S. Sharapov, N. Andrenacci +1
We consider the role of the Ward identity in dealing with the transport properties of an interacting system forming a d-wave modulated charge-density wave or staggered flux phase.…
cond-mat.supr-con2004★ 7 cited
Linear response theory around a localized impurity in the pseudogap regime of an anisotropic superconductor: precursor pairing vs the d-density-wave scenario
N. Andrenacci, G. G. N. Angilella, H. Beck +1
We derive the polarizability of an electron system in (i) the superconducting phase, with d-wave symmetry, (ii) the pseudogap regime, within the precursor pairing scenario, and (ii…