## This Week at Physics |
||

<< Fall 2012 | Spring 2013 | Fall 2013 >> |

### Event Number 2989

**Condensed Matter Theory Group Seminar****Waiting time distribution and switching rate of a microwave photon detector based on a currentâ€“biased Josephson junction****Time:**4:30 pm**Place:**5310 Chamberlin**Speaker:**Amrit Poudel, UW-Madison**Abstract:**In this talk, I will discuss methods to compute the efficiency of a microwave photon detector based on a current-biased Josephson junction (JJ), which is either connected to a (driven) microwave resonator or driven directly by a classical microwave source. Here I consider the evolution of the system in the presence of the environment and tunneling events of the JJ to the voltage state. I will then discuss how one can use the waiting time distribution to compute the average switching rate of the JJ and the efficiency of the photon detector. Finally, I will present a preliminary result on the condition for power matching between the detector, which I treat as a linear oscillator, and the microwave source.- Add this event to your calendar