Experimental features

experimental.Ops

Branch: master

Release: 0.3.13

Immutable operations.

from blueqat import Circuit
from blueqat.experimental import Ops
c = Circuit().x[0]
d = Ops().x[0]

c2 = c.z[0]
d2 = d.z[0]

print(c) # => Circuit(1).x[0].z[0]
print(d) # => Ops(1).x[0]

experimental.utils

Branch: master

Release: None

• circuit_to_unitary

Make (numpy) unitary matrix from Circuit object. It's very heavy operation when n_qubits is not small.

experimental.macros

Branch: experimental-macros

Release: None

• Add some new macros
• Decorator for register_macro

from blueqat.experimental.macros import def_macro

@def_macro
def foo(c, arg):
    pass

# is equivalent with

def foo(c, arg):
    pass
BlueqatGlobalSetting.register_macro('foo', foo)

• Circuit local macro

experimental.vqe

Branch: vqe-experimental

Release: None

Enhanced blueqat.vqe module. It will replace current blueqat.vqe module.

Planned features:

• Picklabel objective function for multiprocessing.
• Better Hamiltonian separation strategy.
  • Simple Hamiltonian separation strategy.
• Refactoring for giving additional information (likes molecular data) to optimizer.
• Improvement performance of probability calculation from statevector.
  • Sampler and expect function will be merged after refactoring.
• Sampler with run options likes backend selection.
  • Sampler and expect function will be merged after refactoring.
• Sampler & expect calculator interface.

experimental.pauli

Branch: vqe-experimental

Release: None

Modifications accompanied with vqe module.

• Picklable time evolution object
• Controlled time evolution
• Use typing.NamedTuple
• Change algorithm for is_commutable
• Add function to get pauli string
• Add function to trim small terms