Raw Data to 'Decay and recurrence of non-Gaussian correlations in a quantum many-body system', arXiv:2003.01808

<p><strong>Absorption images</strong> representing the raw data for&nbsp;<strong>arXiv:2003.01808</strong>, Nature Physics (2021). <a href="https://doi.org/10.1038/s41567-020-01139-2">https://doi.org/10.1038/s41567-020-01139-2</a></p> <p>&#39;scan5100.zip&#39; contains the raw data for figure 2.</p> <p>&#39;scan8679.zip&#39;, &#39;scan8685.zip&#39;, and&nbsp;&#39;scan8696.zip&#39; contain the raw data for the left, middle, and right subplot of figure 3 respectively.</p> <p>The absorption images are numbered consecutively.</p> <p>The first image (for all scans) is&nbsp;taken in the direction of the double-well (DW) separation with our &#39;transverse&#39; imaging system. The measurement is performed&nbsp;before ramping up the DW barrier.&nbsp;The image is taken after&nbsp;11 ms time of flight (TOF). Two images are taken. One&nbsp;image&nbsp;with atoms (&#39;1-atomcloud.tif&#39;), and&nbsp;a second image to record the intensity of the imaging beam without atoms&nbsp;(&#39;1-withoutatoms.tif&#39;).</p> <p>The subsequent images record&nbsp;the interference fringes for the different evolution times (again always pairs &#39;-atomcloud.tif&#39; and &#39;-withoutatoms.tif&#39;). They are taken with our &#39;vertical&#39; imaging system after 15.6 ms TOF. The imaging direction is perpendicular to the weakly confined direction of the clouds as well as the DW separation.</p> <p>The recorded evolution times for scan 5100 are -2 ms (right before ramping the DW barrier up), 0 ms (right after the DW barrier is ramped up), and then in 3 ms steps until 18 ms. I.e., &#39;2-atomcloud.tif&#39; corresponds to -2 ms, &#39;9-atomcloud.tif&#39; corresponds to 18 ms. This completes the &#39;first repeat&#39;. The next picture&nbsp;&#39;10-atomcloud.tif&#39; then belongs to the &#39;second repeat&#39; and is again taken with the &#39;transverse&#39; imaging system. The picture &#39;11-atomcloud.tif&#39; is then again taken with the &#39;vertical&#39; imaging and corresponds to -2 ms. And so forth.</p> <p>In the same way, the pictures for the other scans are ordered,&nbsp;only the recorded evolution times are different. The evolution times&nbsp;are (in ms):</p> <p>scan 8679: -1.2, 0, 2.5, 5, 20 in steps of 2.5 until 32.5<br> scan 8685: -1.3, 0, 2.5, 5, 20 in steps of 2.5 until 32.5<br> scan 8696:&nbsp;-1.6, 0, 2.5, 5, 20 in steps of 2.5 until 32.5</p> <p>The first time always corresponds to right before the DW barrier is ramped up.&nbsp;0 is always right after the barrier was ramped up.</p> <p>Note that for scan&nbsp;8696 only the repeats 1 to&nbsp;193, 215 to 246, 262 to 281, and&nbsp;295 to 330 have been used. For the other repeats the digital micromirror device (DMD) shaping the optical dipole potential has failed.</p> <p>In addition to the data a matlab script is provided, illustrating how to extract the two dimensional&nbsp;atomic density from the absorption images. It contains all relevant parameters of the imaging systems.</p>