Questions tagged [pyquil]
A Python library for quantum programming using Quil. http://docs.rigetti.com
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Bloch sphere visualization using Cirq, ProjectQ, PyQuil
Is there a way to visualize the Bloch sphere using Cirq, ProjectQ, and/or PyQuil, as it is possible using plot_bloch_vector in Qiskit?
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How to create a qubit in an arbitrary state in PyQuil
In PyQuil, a qubit is initialised as $|0\rangle$ by default. Suppose, I want to initialise a qubit in an arbitrary state, say $\frac{1}{\sqrt{3}}|0\rangle+\sqrt{\frac{2}{3}}|1\rangle$. How to do this ...
2
votes
1
answer
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Pyquil run_and_measure gives the same output across all the trials: is this expected?
I tried to run the starter program demonstrated on this page:
http://docs.rigetti.com/en/stable/start.html#installing-the-qvm-and-compiler-on-linux-deb
With the following code:
...
0
votes
1
answer
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VQE for Beginners : Using Tutorial and Cirq
I have been following this tutorial: https://dkopczyk.quantee.co.uk/vqe/
I am using Cirq to try to teach myself VQE, replicate their results, and also try to understand more about ansatz for ...
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How to get the $T1$ specs for the Rigetti's quantum processor (Aspen 7)
I am trying to find the $T1$ coherence time for different qubits of Rigetti's quantum processor (Aspen 7) using Python. I tried using Specs() but encountered an ...
2
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0
answers
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Error during Forest openfermion installation
I tried installing Forest openfermion by
pip install forestopenfermion and I got the following long error message (cut):
...
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3
votes
1
answer
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Newbie Project: Calculate a Mersenne Prime with Quantum Computing
I am new to the quantum world and wondering the bounds of which the technology is at the current state of the art: specifically in computing prime numbers.
I would like to, if possible, create a ...
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6
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1
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How to create the oracle matrix in Grover's algorithm?
I'm trying to implement Grover's algorithm in pyQuil, but I'm having trouble creating the oracle matrix given the function $f$, where $f(x)=1$ if $x=w$ and $f(x)=0$ otherwise. In most of the ...
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Measuring the Hamiltonian in the VQE
I am trying to implement VQE in pyQuil and am dumbfounded by how to measure the expectation value of a general Hamiltonian on $\mathbb{C}^{2^n}$ i.e. determine $\langle\psi , H \psi\rangle$ on a ...
13
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2
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Hamiltonian simulation with complex coefficients
As part of a variational algorithm, I would like to construct a quantum circuit (ideally with pyQuil) that simulates a Hamiltonian of the form:
$H = 0.3 \cdot Z_3Z_4 + 0.12\cdot Z_1Z_3 + [...] +
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