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Venkata Pavan Sumanth Sikhakollu, Shreesha Sreedhara,
Thomas Jagielski, Gagan Deep Goru, Jui-Hsin Hung,
Rajit Manohar, and Jaijeet Roychowdhury
Networks of coupled nonlinear oscillators have
garnered significant attention for their ability to perform
computation through synchronization and phase dynamics.
In particular, Oscillator Ising Machines (OIMs) utilize
coupled nonlinear oscillators to solve combinatorial optimization
problems by exploiting their intrinsic nonlinear
dynamics. This paper presents a custom-fabricated integrated
circuit (IC) implementing a 50-spin OIM, demonstrating
its ability to solve real-world optimization problems.
While prior research has largely focused on simulated
OIMs, our fabricated IC provides experimental
validation of oscillator-based computation for multi-user
multiple-input multiple-output (MU-MIMO) detection.
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