READ ME File For 'Dataset for Time Translation Symmetry, Ergodicity, and Entropy Dynamics in a Time Crystal Driven by Optical Interaction Forces'


Dataset DOI: https://doi.org/10.5258/SOTON/D3489.
ReadMe Author: Kevin MacDonald, University of Southampton

This dataset supports the publication: Time Translation Symmetry, Ergodicity and Entropy Dynamics in a Time Crystal Driven by Optical Interaction Forces
AUTHORS: Tongjun Liu, Venugopal Raskatla, Jinxiang Li, Kevin F. MacDonald, and Nikolay I. Zheludev
TITLE: Time Translation Symmetry, Ergodicity and Entropy Dynamics in a Time Crystal Driven by Optical Interaction Forces
JOURNAL: Newton
PAPER DOI IF KNOWN: https://doi.org/10.1016/j.newton.2025.100206

Contents
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This research data description should be read and understood in the context of the corresponding manuscript. The figure numbers correspond to the figure numbers of the manuscript and the data corresponds to the data as shown in the figures.
The figure descriptions as given in the corresponding manuscript are given below. 
The file contains time series transmissivity data from which Figures 2 and 3 are derived.
[Figure 1, and 5b are schematic diagrams; All necessary information to reproduce the computational results in Figure 4 is contained within the article; Figure 5a is an electron microscope image.] 


Fig. 2: Dynamics of optically-induced spontaneous mobilization and demobilization transitions in the metamaterial continuous time crystal. 
(a-c) Relative transmissivity change δτ(t)/τ_0 of the metamaterial array [orange lines, right-hand axis] related to the out-of-plane motion of nanowires as a function of time while incident laser power is switched between different hight and low levels [blue lines, left-hand axis]. 
(d-f) Corresponding dynamics of transmissivity spectral entropy.


Fig. 3: Transient mobilization and demobilization times. 
(a, b) Transmissivity oscillation dynamics during mobilization and demobilization. 
Panels (c-e) show transmissivity phase diagrams: 
(c) of the disordered state; 
(d) during mobilization; 
(e) the mobilized time crystal state. 
Phase diagrams are derived from analysis of the segments indicated by the yellow shaded boxes in (b) over hundreds of repeated mobilization cycles.


Geographic location of data collection: University of Southampton, U.K.

Related projects:
The Future Advanced Metrology Hub for Sustainable Manufacturing
EPSRC
EP/Z53285X/1

Dataset available under a CC BY 4.0 licence