35 citations · 125 across the 10 of their papers we have counts for
10 papers
Seniority Eigenstate Configuration Interaction
Thomas M Henderson, Guo P. Chen, Gustavo E. Scuseria
Zero-seniority methods have shown great promise for the description of strongly-correlated electronic systems. Other seniority sectors have been much less explored, and in particul…
Jordan-Wigner Transformation for the Description of Strong Correlation in Fermionic Systems
Thomas M. Henderson, Guo P. Chen, Gustavo E. Scuseria
Seniority is a useful way of organizing Hilbert space for strongly correlated systems. The exact zero-seniority wave function, doubly-occupied configuration interaction (DOCI), pro…
Hartree-Fock-Bogoliubov theory for number-parity--violating fermionic Hamiltonians
Thomas M. Henderson, Shadan Ghassemi Tabrizi, Guo P. Chen +1
It is usually asserted that physical Hamiltonians for fermions must contain an even number of fermion operators. This is indeed true in electronic structure theory. However, when t…
Robust formulation of Wick's theorem for computing matrix elements between Hartree-Fock-Bogoliubov wavefunctions
Guo P. Chen, Gustavo E. Scuseria
Numerical difficulties associated with computing matrix elements of operators between Hartree-Fock-Bogoliubov (HFB) wavefunctions have plagued the development of HFB-based many-bod…
Exploring Spin AGP Ansatze for Strongly Correlated Spin Systems
Zhiyuan Liu, Fei Gao, Guo P. Chen +3
The antisymmetrized geminal power (AGP), a wave function equivalent to number-projected Hartree--Fock--Bogoliubov (HFB), and number-projected Bardeen--Cooper--Schrieffer (BCS) when…
Strong-Weak Duality via Jordan-Wigner Transformation: Using Fermionic Methods for Strongly Correlated Spin Systems
Thomas M. Henderson, Guo P. Chen, Gustavo E. Scuseria
The Jordan-Wigner transformation establishes a duality between and fermionic algebras. We present qualitative arguments and numerical evidence that when mapping spins to fe…
AGP-based unitary coupled cluster theory for quantum computers
Armin Khamoshi, Guo P. Chen, Francesco A. Evangelista +1
Electronic structure methods typically benefit from symmetry breaking and restoration, specially in the strong correlation regime. The same goes for Ansätze on a quantum computer.…
Construction of linearly independent non-orthogonal AGP states
Rishab Dutta, Guo P. Chen, Thomas M. Henderson +1
We show how to construct a linearly independent set of antisymmetrized geminal power (AGP) states, which allows us to rewrite our recently introduced geminal replacement models as…
Exploring non-linear correlators on AGP
Armin Khamoshi, Guo P. Chen, Thomas M. Henderson +1
Single-reference methods such as Hartree-Fock-based coupled cluster theory are well known for their accuracy and efficiency for weakly correlated systems. For strongly correlated s…
Fitting a round peg into a round hole: asympotically correcting the generalized gradient approximation for correlation
Antonio Cancio, Guo P. Chen, Brandon T. Krull +1
We revisit the two derivations of the PBE correlation functional: The real-space cut-off of the exchange-correlation hole and the imposition of exact conditions. These differ in th…