def test_daggered_gate_tex_str():
daggered_gate = _metagates.DaggeredGate(Y)
str_Y = Y.tex_str() if hasattr(Y, 'tex_str') else str(Y)
assert daggered_gate.tex_str() == str_Y + r"${}^\dagger$"
# test for a gate with tex_str method
rx = Rx(0.5)
daggered_rx = _metagates.DaggeredGate(rx)
str_rx = rx.tex_str() if hasattr(rx, 'tex_str') else str(rx)
assert daggered_rx.tex_str() == str_rx + r"${}^\dagger$"
from projectq.ops import All, H, T, Rx, Ry, Z, C, Measure
from math import pi
import random, time
# prepare gate set
Xroot, Yroot = Rx(pi/2), Ry(pi/2)
Xroot.tex_str = lambda: '$X^{1/2}$'
Yroot.tex_str = lambda: '$Y^{1/2}$'
def pick_gate(prev_gate):
gates = [Xroot, Yroot, T] #!!! does paper contain error??
gates.remove(prev_gate) # "cycle" selectively includes/excludes C gates
return random.choice(gates)
def apply_random_circuit(qubits, circ_depth, engine):
# prepare structures
num_qubits = len(qubits)
has_toffo = [False]*num_qubits
prev_gate = [None]*num_qubits
prev_sing = [T]*num_qubits
curr_gate = [H]*num_qubits
c_start_i = -1
# don't include init-state in timing
engine.flush()
engine.backend.set_wavefunction([1], qubits)
engine.backend.collapse_wavefunction(qubits, [0]*num_qubits)