Use sparse simulator by default #187
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QuantumWorld now defaults to using SparseSimulator instead of cirq.Simulator for the sampler. This should be a good default because users are likely to construct sparse states with the sort of operations provided by Unitary, and with the previous default performance problems quickly arise as soon as you have more than a handful of qubits. compile_to_qubits, which is required for the sparse simulator, is now automatically enabled when using a sparse simulator. All examples should now be using sparse simulation except Tic-Tac-Toe. I left the Tic-Tac-Toe example using the old default of cirq.Simulator since I'm not sure if the states are actually sparse in this game, and it would have been some effort to fix tests.
dstrain115
approved these changes
Mar 21, 2024
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