Is time continuous or discrete in quantum physics?

[deepalakshmi]

TL;DR

Is time continuous or discrete in quantum physics

I was working on plotting fidelity with time for two quantum states. First I used discrete time( t= 0,1,2,3...etc) to plot my fidelity. I got constant fidelity as 1 with continuous value of time. Next I used discrete set of values ( t=0 °,30 °,60 °,90 °). Here I saw my fidelity decreases and after a particular time it became constant (0). My teacher said that I should use continuous set of values. Why continuous rather than discrete?

 

[anuttarasammyak]

The both you quote are discrete though I don' t know their units of time, including angle with which I am not familiar. I am afraid you take your teachers advice in a wrong manner.

 

[vanhees71]

In standard QT time is a continuous real parameter (NOT an observable).