Extended Data Fig. 3: Raw data used to obtain the energy shift.
From: Spontaneous emission of matter waves from a tunable open quantum system
a, b, Second moment of k (a) and half-separation squared (b) both subtracted by Δ/(2π). The detuning Δ/(2π) is 1.0 kHz (black disks), 2.0 kHz (red triangles), 4.0 kHz (green squares) and 6.0 kHz (blue circles). Points in brackets correspond to the non-Markovian regime, Ω/Δ > 1.
