22 citations · 33 across the 10 of their papers we have counts for
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Uncovering relationships between the electronic self-energy and coupled-cluster doubles theory
Christopher J. N. Coveney
We derive the coupled-cluster doubles (CCD) amplitude equations by introduction of the particle-hole-time decoupled electronic self-energy. The resulting analysis leads to an expre…
Ultrafast Spontaneous Exciton Dissociation via Phonon Emission in BiVO
Stephen E. Gant, Antonios M. Alvertis, Christopher J. N. Coveney +3
Monoclinic bismuth vanadate (m-BiVO) is a promising indirect band gap semiconductor for photoelectrochemical water splitting, yet the characteristics of its low-lying photoexci…
Non-hermitian Green's function theory with -body interactions: the coupled-cluster similarity transformation
Christopher J. N. Coveney, David P. Tew
We present the diagrammatic theory of the irreducible self-energy and Bethe-Salpeter kernel that naturally arises within the Green's function formalism for a general -body non-h…
Theory of ab initio downfolding with arbitrary range electron-phonon coupling
Norm M. Tubman, Christopher J. N. Coveney, Chih-En Hsu +6
Ab initio downfolding describes the electronic structure of materials within a low-energy subspace, often around the Fermi level. Typically starting from mean-field calculations, t…
Phonon-mediated electron attraction in SrTiO via the generalized Fröhlich and deformation potential mechanisms
Christopher J. N. Coveney, Norm M. Tubman, Chih-En Hsu +6
Superconductivity in doped SrTiO was discovered in 1964, the first superconducting transition observed in a doped semiconductor. However, the mechanism of electron pairing in S…