Out-of-equilibrium dynamics in Gaussian systems: from quantum quenches to measurement-induced phase transitions
Etienne Granet (Chicago University)
Zoom link:
https://cnrs.zoom.us/j/95651129119?pwd=bzZNbTdhTDBZa1B6TkM5MVhxNE84QT09
Meeting ID: 956 5112 9119
Passcode: Y8Rgv7
Unusual time: 3pm!
Solvable models are invaluable to understand the complex dynamics of many-body quantum systems. I will present two exact results on free fermions driven out of equilibrium. I will first show how to compute the time-dependent magnetization in the infinite-size Ising model when an arbitrary magnetic field is monitored, which was unknown before. In a second part I will show how to build solvable models for measurement-induced phase transitions between volume-law and area-law entangled states, and compute the associated critical exponents.