22 citations · 33 across the 10 of their papers we have counts for
10 papers
Irreversibility, equilibrium and measurement in quantum mechanics
Christopher J. N. Coveney, Peter V. Coveney
Quantum mechanics is widely recognised as being incomplete. It is not consistent with the second law of thermodynamics and does not provide a scientifically credible physical accou…
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…
Rearrangement collision theory of phonon-driven exciton dissociation
Christopher J. N. Coveney, Jonah B. Haber, Antonios M. Alvertis +2
Understanding the processes governing the dissociation of excitons to free charge carriers in semiconductors and insulators is of central importance for photovoltaic applications.…
Phonon screening and dissociation of excitons at finite temperatures from first principles
Antonios M. Alvertis, Jonah B. Haber, Zhenglu Li +4
The properties of excitons, or correlated electron-hole pairs, are of paramount importance to optoelectronic applications of materials. A central component of exciton physics is th…
Diagrammatic theory of the irreducible coupled-cluster self-energy
Christopher J. N. Coveney, David P. Tew
Coupled-cluster and Green's function theories are highly successful in treating many-body electron correlation, and there has been significant interest in identifying and leveragin…
A regularized second-order correlation method from Green's function theory
Christopher J. N. Coveney, David P. Tew
We present a scalable single-particle framework to treat electronic correlation in molecules and materials motivated by Green's function theory. We derive a size-extensive Brilloui…