We will first discuss fundamental concepts of phase transition phenomenology in the context of cavity QED systems. A short introduction to cavity QED will be presented. This includes the description of our laboratory setup at Wigner RCP. Then we will describe two recent experiments where first-order phase transitions have been observed with laser cooled and trapped atoms in an optical cavity. Besides the time-resolved observation of the dynamical transmission blockade breakdown phase transition, the system allows for the quantification of enhanced fluctuations in the critical region and for performing finite size scaling measurements.
Phase transitions with cold atoms in zero-dimensional systems of cavity quantum electrodynamics
2022. 09. 13. 14:30
BME building F, 2nd floor, lecture hall 13
Péter Domokos (Wigner RCP)