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I Help in understanding a quantum circuit

  1. Mar 29, 2017 #1
    I'm in a proyect to simulate quantum circuits in robots like in this paper
    ( http://ieeexplore.ieee.org/document/4215941/ ) ,the first thing that i need to do is to simulated the circuit that is in that paper:

    upload_2017-3-29_15-15-14.png
    But i'm having trouble understanding how the hadamard gate affects the "C" entrance, any help will be appreciated.

    Thanks
     
  2. jcsd
  3. Mar 30, 2017 #2

    Strilanc

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    Science Advisor

    In this case, assuming ##S1## is off or on (i.e. not in a superposition w.r.t. the computational basis), the Hadamard gate just acts like a classical coin flip because its output is only ever measured or used to control other operations.

    ##S2## seems completely pointless as far as I can tell.

    You can simulate the circuit in Quirk to see the specific cases:

    circuit-cycle.gif
     
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