Lubchenko, VassiliyWolynes, Peter G.2004-12-032004-12-0320012001http://hdl.handle.net/2003/154210.17877/DE290R-11326enThe American Physical SocietyPhysical Review Letters530Intrinsic Quantum Excitations of Low Temperature Glasses10.1103/PhysRevLett.87.195901article (journal)