17 citations · 31 across the 3 of their papers we have counts for
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cond-mat.supr-con2004
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…
cond-mat.supr-con2003
Internal structure of preformed Cooper pairs
N. Andrenacci, H. Beck
In order to obtain information about the internal structure of the preformed pairs in the pseudogap state of high superconductors, we calculate the propagator of a singlet pa…