1 citations · 1 across the 5 of their papers we have counts for
5 papers
Diagrammatic Monte Carlo for Fermionic Rényi Entanglement Entropy
Boyuan Shi
We develop a direct diagrammatic Monte Carlo method for the second Rényi entropy of inter- acting lattice fermions. Fermionic replica sewing yields a connected-determinant (CDet) e…
CoS++: Towards More General and Explicit Implementations for Sampling High-Order Feynman Diagrammatic Series
Boyuan Shi
We extend combinatorial summation (CoS) of connected Feynman diagrams to Hubbard mod- els with flavor-dependent propagators and counterterm shifts. The construction combines an int…
Fast summation of fermionic Feynman diagrams beyond Bravais Lattices and on-site Hubbard interactions
Boyuan Shi
We designed new algorithms for summing bold-line Feynman diagrams in arbitrary channels, where it can be readily modified for bare interaction series as well. When applied to magne…
Semi-Deterministic and Stochastic Sampling of Feynman Diagrams with 1/N Expansions
Boyuan Shi
We introduce a family of (semi) bold-line series, assisted with expansions, with being the number of fermion flavours. If there is no additional $\m…
Quantum simulations of time-dependent Hamiltonians beyond the quasi-static approximation
Boyuan Shi, Florian Mintert
Existing approaches to analogue quantum simulations of time-dependent quantum systems rely on perturbative corrections to quantum simulations of time-independent quantum systems. W…