EdX Phase Kickback

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  • Опубліковано 24 січ 2025

КОМЕНТАРІ • 8

  • @saikrishnasunkam4344
    @saikrishnasunkam4344 2 роки тому +2

    oh my god this was so awesome, i was always confused how phase kickback always magically kicked the phase back to the control and not the target, now it makes sense

  • @premsingh2261
    @premsingh2261 3 роки тому +3

    Very nice 👌

  • @rs-tarxvfz
    @rs-tarxvfz 2 роки тому

    What is mean by Phase in phase kickback ? I mean I want to understand notion of it -- Physically and Mathematically. AFA I have understood Phase means an angle theta which is also called Azimuthal angle made with X-axis in XY-Plane of Bloch Sphere. Is this right? How does it manifest physically?

    • @loose4bet
      @loose4bet Рік тому

      As far as I understand there's no measurement that can detect phase. It's an intrinsic quantum property that can be used for quantum computations before measurement is done.

  • @jxchtajxbt53
    @jxchtajxbt53 3 роки тому +7

    The worst presentation of phase kickback ever. The ball splitting, multiplicity and transformations are unnecessary convolutions. The usual bra-ket and circuit notation works much better.

    • @rs-tarxvfz
      @rs-tarxvfz 2 роки тому +1

      May be, All the way we learn that Control never changes. This video shows that Control can change. That is the point of video to demonstrate the magic.

    • @jullyanolino
      @jullyanolino Рік тому

      Hi, do you know another didactic explanation to phase kickback?

    • @loose4bet
      @loose4bet Рік тому +1

      I'm pretty sure the presenter use the diagrams exactly to avoid the braket notation. In order to make it digestible for the noobs. If you know dirac notation and you already understand the phase kickback concept this presentation is clearly not for you.