3 papers
quant-ph2026
Augmenting Imaginary-Time Evolution with Local Geometric Information
Carlos L. Benavides-Riveros, Prachi Sharma, Fedor Šimkovic
Imaginary-time evolution (ITE) underpins a broad family of algorithms for ground-state preparation in quantum simulation and quantum many-body physics. In these methods, convergenc…
quant-ph2024
Quantum subspace expansion in the presence of hardware noise
João C. Getelina, Prachi Sharma, Thomas Iadecola +2
Finding ground state energies on current quantum processing units (QPUs) using algorithms like the variational quantum eigensolver (VQE) continues to pose challenges. Hardware nois…
cond-mat.str-el2023
Optical conductivity and damping of plasmons due to electron-electron interaction
Prachi Sharma, Alessandro Principi, Giovanni Vignale +1
We re-visit the issue of plasmon damping due to electron-electron interaction. The plasmon linewidth can related to the imaginary part of the charge susceptibility or, equivalently…