Some interesting #physics #statistics here. These are Google Books #NGram plots for the following terms:

#QuantumEntanglement
#CorrelationFunction
#Correlation
#CorrelationCoefficient
#ConnectedCorrelationFunction
#ConnectedCorrelation
#DisconnectedCorrelation
#ClassicalCorrelations
#QuantumCorrelations
#LongRangeOrder
#ShortRangeOrder