Analog of cosmological particle creation

“In cosmology there’s this quantum effect,” Ralf Schützhold tells PhysOrg.com. “In the universe, there is a ground state, where it is empty. But if the universe starts to expand or contract, the vacuum is distorted, no longer empty. Particles are created.”

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<p><a href="http://www.physorg.com/news115907018.html">Analog of cosmological particle creation</a></p> <p>“In cosmology there’s this quantum effect,” Ralf Schützhold tells <i>PhysOrg.com</i>. “In the universe, there is a ground state, where it is empty. But if the universe starts to expand or contract, the vacuum is distorted, no longer empty. Particles are created.”</p>