Questions tagged [rigetti]

Rigetti Computing is a Berkeley, California-based developer of quantum integrated circuits used for quantum computers. The company also develops a cloud platform called Forest that enables programmers to write quantum algorithms. (Wikipedia)

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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 ...
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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 ...
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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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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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Status of software packages for quantum compiling

By "quantum compiling", what I mean is classical algorithms to solve the following problem: given a $SU(D)$ matrix $U$ (the goal) and a set of $SU(D)$ unitary matrices $V_1 \cdots V_N$ (the gates), ...
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How are Rigetti and IBM QX device parameters related to Kraus operators?

Rigetti reports the following parameters: (https://www.rigetti.com/qpu) T1, T2* times 1-qubit gate fidelity (F1q) 2-qubit gate fidelity (F2q) and, read-out fidelity (Fro) IBM QX reports the ...
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What are physically allowed CNOTs for Rigetti's 19 qubit chip and Google's 72 qubit BristleCone chip?

For each IBM quantum chip, one can write a dictionary mapping each control qubit j to a list of its physically allowed targets, assuming j is the control of a CNOT. For example, ...