Tianyi Hao

Upon clicking the plugin icon while on a journal page, the plugin notifies "fetching items" and then "no events detected". The console shows errors parsing event objects fetched from ics...

Performance difference between circuit synthesis and unitary synthesis when synthesizing a unitary with size greater than 3

2

When `max_synthesis_size` is 4 or above, directly synthesizing a unitary takes significantly longer than wrapping the unitary in a circuit. Reproducible example: ```python import numpy as np import qiskit from...

add get_std() to simulators

1

Added native implementation calculating the standard deviation to all simulators. Tried my best to support as large a scale as possible and avoid unnecessary duplicate computations. Bonus: `get_qaoa_objective()` now can...

Communication inside the MPI simulator may cause overflow error when the message is large

1

This happens, for example, when calling MPI simulator's `get_probabilities()` which does `self._comm.allgather(result.copy_to_host())`. If the vector is too large (e.g. 32 qubits), the following is raised: ``` File "mpi4py/MPI/Comm.pyx", line 1595,...

In certain conditions, when `precomputed_costs` is not provided by the user, qokit would calculate it with CPU-version functions outside of the simulator. This is intractable when the number of qubits...