3 papers
cond-mat.str-el2025
Automated evaluation of imaginary time strong coupling diagrams by sum-of-exponentials hybridization fitting
Zhen Huang, Denis Golež, Hugo U. R. Strand +1
We present an efficient separation of variables algorithm for the evaluation of imaginary time Feynman diagrams appearing in the bold pseudo-particle strong coupling expansion of t…
physics.comp-ph2024
Renormalization of States and Quasiparticles in Many-body Downfolding
Annabelle Canestraight, Zhen Huang, Vojtech Vlcek
We explore the principles of many-body Hamiltonian complexity reduction via downfolding on an effective low-dimensional representation. We present a unique measure of fidelity betw…
physics.chem-ph2024
Real-time propagation of adaptive sampling selected configuration interaction wave function
Avijit Shee, Zhen Huang, Martin Head-Gordon +1
We have developed a new time propagation method, time-dependent adaptive sampling configuration interaction (TD-ASCI), to describe the dynamics of a strongly correlated system. We…