Extensions for Yao. （Abandoned, circuits and hamiltonians are moved to Yao.EasyBuild)
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circuits
- variational_circuit(n): construct a random parametrized circuit.
- rand_supremacy2d(nx, ny, depth): construct a quantum supremacy circuit.
- qft_circuit(n): construct a quantum fourier transformation circuit.
- rand_google53(): construct a Google's 53 qubit supremacy circuit.
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circuit building blocks
- general_U4(): an optimal decomposition of a U(4) gate.
- cphase(nbit, i, j), cz(nbit, i, j)
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hamiltonians
- heisenberg(n): construct a heisenberg hamiltonian.
- transverse_ising(n): construct a transverse field Ising hamiltonian.
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primitive blocks
- SqrtX, SqrtY, FSim, ISWAP, SqrtW
- Mod: modulo operation block.
- QFT: faster implementation of QFT subroutine, instead of running QFT circuit faithfully, simulate it with classical
fft(thus much faster). - RotBasis: basis rotor, make measurements on different basis easier.
- MathGate: classical mathematic functions.
- ReflectGate: used in grover search,
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composite blocks
- Bag: a trivial container block that gives the flexibility to change the sub-block, as well as masking. Mainly used for structure learning.
- ConditionBlock: conditional control the excusion of two block.
- Sequence: similar to chain block, but more general, one can put anything inside.
- PauliString: a paulistring.
- gatecount, count the number of gates,
- faithful simulation of gradients, including observable loss and MMD loss