Universal Entanglement Dynamics following a Local Quench

• Published in: SciPost physics Vol. 3; no. 1; p. 001
• Main Authors: Vasseur, Romain, Saleur, Hubert
• Format: Journal Article
• Language: English
• Published: Netherlands Stichting SciPost 01.07.2017; SciPost

We study the time dependence of the entanglement between two quantum wires after suddenly connecting them via tunneling through an impurity. The result at large times is given by the well known formula S(t) \approx {1\over 3}\ln {t} . We show that the intermediate time regime can be described by a u...