25 citations · 42 across the 3 of their papers we have counts for
3 papers
Simulating non-unitary dynamics using quantum signal processing with unitary block encoding
Hans Hon Sang Chan, David Muñoz Ramo, Nathan Fitzpatrick
We adapt a recent advance in resource-frugal quantum signal processing - the Quantum Eigenvalue Transform with Unitary matrices (QET-U) - to explore non-unitary imaginary time evol…
Algorithmic Shadow Spectroscopy
Hans Hon Sang Chan, Richard Meister, Matthew L. Goh +1
We present shadow spectroscopy as a simulator-agnostic quantum algorithm for estimating energy gaps using very few circuit repetitions (shots) and no extra resources (ancilla qubit…
Molecular Excited State Calculations with Adaptive Wavefunctions on a Quantum Eigensolver Emulation: Reducing Circuit Depth and Separating Spin States
Hans Hon Sang Chan, Nathan Fitzpatrick, Javier Segarra-Marti +2
Ab initio electronic excited state calculations are necessary for the quantitative study of photochemical reactions, but their accurate computation on classical computers is plague…