Hi, I am interested to know whether the following is possible with Pennylane: To prepare a state (given \theta and \phi) from |0\rangle to |\psi\rangle where |\psi\rangle = \cos(\frac{\theta}{2})|0\rangle + e^{i\phi}\sin(\frac{\theta}{2}) that can be represented on a Bloch sphere. Kind regards!

Hi @avinash_ch , Certainly, this is a fairly easy modification of the qubit rotation example here: https://pennylane.readthedocs.io/en/latest/tutorials/pennylane_run_qubit_rotation.html#qubit-rotation The main difference is you will need to change to a measurement appropriate for the state you wan…

In addition, you can also check out the following post for some example code: [image] Optimizing state overlap / multi-qubit qml.expval.Hermitian() PennyLane Help And just for completeness, here is the full optimization: import pennylane as qml from pennylane import numpy…

@josh @nathan Thank you. I will check it.

State preparation with pennylane

PennyLane Help

josh September 18, 2019, 8:11pm 3

In addition, you can also check out the following post for some example code:

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State preparation with pennylane

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