By <a href="http://www.scientificamerican.com/author/clara-moskowitz">Clara Moskowitz</a> -<br><br>Physicists have used a quantum connection Albert Einstein called “spooky action at a distance” to link 500,000 atoms together so that their fates were entwined. The atoms were connected via “<a href="http://www.scientificamerican.com/article/entanglement/">entanglement</a>,” which means an action performed on one atom will reverberate on any atom entangled with it, even if the particles are far apart. The huge cloud of entangled atoms is the first “macroscopic spin singlet,” a new state of matter that was predicted but never before realized.<br><br><a href="http://www.scientificamerican.com/article/quantum-entanglement-creates-new-state-of-matter1/">READ MORE ON SCIENTIFIC AMERICAN</a>
