Time-series of Normal Modes $Q_k$ and respective Energies $E_k$ ($k=1, 2, \cdots, N$ with $N=32$) of Fermi-Pasta-Ulam-Tsingou (FPUT) $\beta$ model ($\beta=0.1$)

The two datasets contain the time-evolution of normal mode coordinates $Q_i$ and their corresponding energies $E_i$ ($i=1, 2, 3, \cdots, N)$) from the simulation for $\beta=0.1$ of the Fermi-Pasta-Ulam-Tsingou (FPUT) chain with $N=32$ coupled oscillators. The number of time-steps is $500, 000$. The initial condition correspond to exciting the mode $1$ only. Note that only modes with $i=1, 3, 5$ are involved in the system's dynamics. Note that $Q_1, Q_3$, and $Q_5$ display beats, i.e., interference patterns.