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DOE OSTI · 2564908

Radiative processes on a quantum computer

Bedaque, Paulo F. [University of Maryland, College Park, MD (United States)] (ORCID:0000000152109997)·Khadka, Ratna [Mississippi State University, MS (United States)] (ORCID:0009000966287028)·Rupak, Gautam [Mississippi State University, MS (United States)] (ORCID:000000016683177X)·Yusf, Muhammad [Mississippi State University, MS (United States)] (ORCID:000900066415369X)
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Abstract

Radiative processes, where a photon/neutrino is emitted as a result of a collision or decay of a particle, play a central role in atomic, nuclear, and particle physics. Their rate is determined by certain off-diagonal matrix elements between different initial and final states. We propose a method to compute them using quantum computers. It relies on a single extra qubit that, in a certain sense, represents the photon/neutrino. The generic formula relating this matrix element to the amplitude and frequency of oscillations of the extra qubit is derived for the near-resonance case. Furthermore, we demonstrate the feasibility of the method by using it in actual quantum computations and simulations of simple systems.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSFew-body systemsNuclear reactionsNuclear structure & decaysQuantum algorithms & computationQuantum simulation

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BibTeXRIS

Bedaque, Paulo F. [University of Maryland, College Park, MD (United States)] (ORCID:0000000152109997), Khadka, Ratna [Mississippi State University, MS (United States)] (ORCID:0009000966287028), Rupak, Gautam [Mississippi State University, MS (United States)] (ORCID:000000016683177X), Yusf, Muhammad [Mississippi State University, MS (United States)] (ORCID:000900066415369X). 2025-03-07. Radiative processes on a quantum computer. https://doi.org/10.1103/physrevc.111.034604

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