Cirqqrack

Latest version: v0.8.3

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0.5.0

This release adds the `ISwap` gate and its inverse to the API.

0.4.1

The case of simulating for a single measurement shot has been optimized.

0.4.0

QUnitMulti` can be turned on upon demand, but the convention for some time in the other Qrack plugins is to turn it off by default, as it tends to hurt performance on Optimus laptops, unless the user intentionally configures a multi-device environment.

The `FSim()` gate has been modified to "aggressively" try to Schmidt decompose its targets before dispatching the gate payload, as with Qrack's C++11 implementation of the 2019 Sycamore ("quantum supremacy") experiment. This is necessary to see maximum "Schmidt decomposition rounding parameter" ("SDRP") actually manage to (vacuously) simulate Sycamore circuits without leading to out-of-memory exceptions, at a baseline. (If SDRP is at its default setting, this should only impose a relatively slight additional execution time cost on the `FSim()` gate, without affecting fidelity.)

0.3.0

The option `mask_fusion_1qb` is no longer supported in PyQrack.

0.2.0

Qrack now detects if it cannot run a requested gate and raises exception. The FSim and PhasedXPowGate have also been added to the list of gates that the plugin can handle.

0.1.4

A bug has been fixed that prevented measuring single samples.

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