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Home Courses The Building Blocks of a Quantum Computer: Part 1 Course materials Lectures 4.3.2 Single quit gates

4.3.2 Single quit gates

Course subject(s) Module 4. Superconducting quits

Having learnt about measurement, we will now dive deeper into single qubit gates. Brian Tarasinski is your lecturer in this next video.

Main takeaways

  • Qubit operations are done using Rabi oscillation by applying an external oscillating electric field at the transmons qubit.
  • Performing desired gates require a short pulse with the correct phase, amplitude and length. This way any rotation within the x-y plane can be performed.
  • The minimum duration of a pulse is limited due to the broadening of the frequency spectrum as pulses get shorter.
  • In case the frequency spectrum is to broad, not only oscillations between the 0 and 1 state occur, but also between 1 and 2.
  • To push the limit of this short pulse duration, a Gaussian shaped envelope is used in combination with a technique called Derivative Removal by Adiabatic Gate (DRAG).
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