Controlled Dephasing of an Electron Interferometer with a Path Detector at Equilibrium
Controlled Dephasing of an Electron Interferometer with a Path Detector at Equilibrium
Controlled dephasing of electrons, via "which path" detection, involves, in general, coupling a coherent system to a current driven noise source. However, here we present a case in which a nearly isolated electron puddle within a quantum dot, at thermal equilibrium and in millikelvin range temperature, fully dephases the interference …