Put noise before gates #5327
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Put noise before gates #5327
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95-martin-orion
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BREAKING CHANGE
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Placing noise before or after gates will be provided as an option instead of changing the default. |
CirqBot
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rht
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Fixes quantumlib#2570. This is essentially a more friendly version of quantumlib#5327 which maintains existing behavior but gives users the option to prepend noise (or append, in the case of readout error) on various noise models.
harry-phasecraft
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Fixes quantumlib#2570. This is essentially a more friendly version of quantumlib#5327 which maintains existing behavior but gives users the option to prepend noise (or append, in the case of readout error) on various noise models.
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Fixes #2570.
This is a breaking change, as placing noise before gates can have measurably distinct behavior from placing the same noise after gates (e.g.
X(q), H(q)!=H(q), X(q)). However, in the common use case where noise effects are small, this has minimal effect on the outcome of the circuit.