Quantum computation of nuclear observables involving linear combination of unitary operators
Quantum Physics
2022-06-29 v1 Nuclear Theory
Abstract
We present the quantum computation of nuclear observables where the operators of interest are first decomposed in terms of the linear combination of unitaries. Then we utilise the Hadamard test and the linear combination of unitaries (LCU) based methods to compute the expectation values. We apply these methods to calculate the electric quadrupole moment of deuteron. The results are compared for the Jordan-Wigner transformation and Gray code encoding. We discuss the versatility of our approach that can be utilized in general to calculate several observables on a quantum computer.
Keywords
Cite
@article{arxiv.2206.08510,
title = {Quantum computation of nuclear observables involving linear combination of unitary operators},
author = {Pooja Siwach and P. Arumugam},
journal= {arXiv preprint arXiv:2206.08510},
year = {2022}
}
Comments
11 pages, 12 figures, accepted for publication in Phys. Rev. C