Highly Sensitive Implementation of Logic Gates with a Nonlinear Nanomechanical Resonator
Yukihiro Tadokoro, Hiroya Tanaka
Abstract
We introduce a theoretical concept of logic gates for sequenced data that contain a large number of data bits to be computed using a nonlinear nanomechanical resonator. Resonantly driven nanomechanical modes display the bistability of forced vibrations. Near the cusp point on the bifurcation curve, even a small change in driving force can lead to switching between the vibrational states with significantly different amplitudes. This enables a highly sensitive implementation of logic gates, including and, or, and xor gates. The underlying principles are simple and generic, suggesting that our method is applicable not only to nanomechanical systems but also to a wide variety of bistable physical, chemical, and biological systems.