47 citations · 101 across the 9 of their papers we have counts for
9 papers
Late Breaking Results: New Computational Results and Hardware Prototypes for Oscillator-based Ising Machines
Tianshi Wang, Leon Wu, Jaijeet Roychowdhury
In this paper, we report new results on a novel Ising machine technology for solving combinatorial optimization problems using networks of coupled self-sustaining oscillators. Spec…
OIM: Oscillator-based Ising Machines for Solving Combinatorial Optimisation Problems
Tianshi Wang, Jaijeet Roychowdhury
We present a new way to make Ising machines, i.e., using networks of coupled self-sustaining nonlinear oscillators. Our scheme is theoretically rooted in a novel result that establ…
Oscillator-based Ising Machine
Tianshi Wang, Jaijeet Roychowdhury
Many combinatorial optimization problems can be mapped to finding the ground states of the corresponding Ising Hamiltonians. The physical systems that can solve optimization proble…
Rigorous Q Factor Formulation and Characterization for Nonlinear Oscillators
Tianshi Wang, Jaijeet Roychowdhury
In this paper, we discuss the definition of Q factor for nonlinear oscillators. While available definitions of Q are often limited to linear resonators or oscillators with specific…
Achieving Phase-based Logic Bit Storage in Mechanical Metronomes
Tianshi Wang
Recently, oscillator-based Boolean computation has been proposed for its potentials in noise immunity and energy efficiency. In such a system, logic bits are encoded in the relativ…
Analyzing Oscillators using Describing Functions
Tianshi Wang
In this manuscript, we discuss the use of describing functions as a systematic approach to the analysis and design of oscillators. Describing functions are traditionally used to st…
Sub-harmonic Injection Locking in Metronomes
Tianshi Wang
In this paper, we demonstrate sub-harmonic injection locking (SHIL) in mechanical metronomes. To do so, we first formulate metronome's physical compact model, focusing on its nonli…
A Functional Package for Automatic Solution of Ordinary Differential Equations with Spectral Methods
Shaohui Liu, Tianshi Wang, Youran Zhang
We present a Python module named PyCheb, to solve the ordinary differential equations by using spectral collocation method. PyCheb incorporates discretization using Chebyshev point…
Well-Posed Models of Memristive Devices
Tianshi Wang, Jaijeet Roychowdhury
Existing compact models for memristive devices (including RRAM and CBRAM) all suffer from issues related to mathematical ill-posedness and/or improper implementation. This limits t…