Fig. 4: Bell test—temperature dependence.
From: Bell inequality violation in gate-defined quantum dots
a Bell signal S as a function of temperature T for all four maximally entangled Bell states measured by the direct parity measurement (open symbols) and quantum state tomography (filled symbols). b Bell state (FBell) and charge readout (FCRO) fidelities as a function of temperature T for all four maximally entangled Bell states obtained from quantum state tomography and RF-SET signal histograms, respectively. Error bars represent the 95% confidence level.
