activity
20242026
collaborators

6 papers

quant-ph2026

A Quantum Algorithm with Polylogarithmic Depth per Trotter Step for the Extended Hubbard Model

Yu Wang, Martina Nibbi, Maxine Luo +4

The extended Hubbard model on a two-dimensional lattice captures key physical phenomena, but its simulation remains challenging because long-range interactions give rise to a large…

quant-ph2026

Practical block encodings of matrix polynomials that can also be trivially controlled

Martina Nibbi, Filippo Della Chiara, Yizhi Shen +2

Quantum circuits naturally implement unitary operations on input quantum states. However, non-unitary operations can also be implemented through block encodings, where additional a…

quant-ph2025

Extending Quantum Computing through Subspace, Embedding and Classical Molecular Dynamics Techniques

Thomas M. Bickley, Angus Mingare, Tim Weaving +10

The advent of hybrid computing platforms consisting of quantum processing units integrated with conventional high-performance computing brings new opportunities for algorithm desig…

quant-ph2025

Efficient LCU block encodings through Dicke states preparation

Filippo Della Chiara, Martina Nibbi, Yizhi Shen +1

With the Quantum Singular Value Transformation (QSVT) emerging as a unifying framework for diverse quantum speedups, the efficient construction of block encodings -- their fundamen…

physics.chem-ph2025

Wavefunction optimization at the complete basis set limit with Multiwavelets and DMRG

Martina Nibbi, Luca Frediani, Evgueni Dinvay +1

The density matrix renormalization group (DMRG) is a powerful numerical technique to solve strongly correlated quantum systems: it deals well with systems which are not dominated b…

quant-ph2024

Block encoding of matrix product operators

Martina Nibbi, Christian B. Mendl

Quantum signal processing combined with quantum eigenvalue transformation has recently emerged as a unifying framework for several quantum algorithms. In its standard form, it cons…