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SWAP and ISWAP gates.
This module creates Gate instances for the following gates: SWAP: the swap gate. ISWAP: a swap gate with a phase on the swapped subspace. SQRT_ISWAP: square root of the ISWAP gate. SQRT_ISWAP_INV: inverse square root of the ISWAP gate.
Each of these are implemented as EigenGates, which means that they can be raised to a power (i.e. SQRT_ISWAP_INV=cirq.ISWAP**-0.5). See the definition in EigenGate.
Classes
class ISwapPowGate: Rotates the |01⟩ vs |10⟩ subspace of two qubits around its Bloch X-axis.
class SwapPowGate: The SWAP gate, possibly raised to a power. Exchanges qubits.
Functions
ISWAP(...): The iswap gate.
SQRT_ISWAP(...): The square root of iswap gate.
SQRT_ISWAP_INV(...): The inverse square root of iswap gate.
SWAP(...): The swap gate.
riswap(...): Returns gate with matrix exp(+i angle_rads (X⊗X + Y⊗Y) / 2).
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