TY - JOUR T1 - Experimentally Generated Random Numbers Certified by the Impossibility of Superluminal Signaling Y1 - 2017 A1 - Peter Bierhorst A1 - Emanuel Knill A1 - Scott Glancy A1 - Alan Mink A1 - Stephen P. Jordan A1 - Andrea Rommal A1 - Yi-Kai Liu A1 - Bradley Christensen A1 - Sae Woo Nam A1 - Lynden K. Shalm AB -

Random numbers are an important resource for applications such as numerical simulation and secure communication. However, it is difficult to certify whether a physical random number generator is truly unpredictable. Here, we exploit the phenomenon of quantum nonlocality in a loophole-free photonic Bell test experiment for the generation of randomness that cannot be predicted within any physical theory that allows one to make independent measurement choices and prohibits superluminal signaling. To certify and quantify the randomness, we describe a new protocol that performs well in an experimental regime characterized by low violation of Bell inequalities. Applying an extractor function to our data, we obtained 256 new random bits, uniform to within 0.001.

UR - https://arxiv.org/abs/1702.05178# ER -