Measurement-based acceleration of optical computations
Phys. Rev. A 114, 023513 – Published 18 August, 2026
DOI: https://doi.org/10.1103/9kn6-hv44
Abstract
Analog coprocessors are presently intensively developing with the aim to optimize energy computations of neural networks. In this work we focus on the possibility of using detection of collective oscillations in optical systems for computational purposes. We show that in a system of coupled resonators the collective oscillations can be used to implement matrix-vector multiplication. The matrix is formed by the coupling constants between the resonators, and the input vector is formed by the initial occupancies of the involved modes. The frequency of the collective oscillations is growing with the number of the involved modes, similarly to Rabi oscillations. The time needed for their detection, i.e., averaging, decreases with an increase in the input vector dimension.
