All three tests simultaneously addressed the detection loophole , the locality loophole , and the memory loophole .
In 2015 the first three significant - loophole - free Bell - tests were published within three months by independent groups in Delft , Vienna and Boulder .
All three tests addressed the detection loophole , the locality loophole , and the memory loophole .
In 2015 the first three significant - loophole - free Bell - tests were published within three months by independent groups in Delft , Vienna and Boulder .