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feat: add phaserx gate #250

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merged 4 commits into from
Apr 19, 2024
Merged

feat: add phaserx gate #250

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5083715
feat: add phase RX gate
Apr 18, 2024
0606561
add gate
Apr 18, 2024
b196b1b
Update src/braket/default_simulator/gate_operations.py
AbeCoull Apr 19, 2024
840ee0e
tox fix
Apr 19, 2024
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1 change: 1 addition & 0 deletions src/braket/default_simulator/density_matrix_simulator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -85,6 +85,7 @@ def properties(self) -> GateModelSimulatorDeviceCapabilities:
"ms",
"pswap",
"phaseshift",
"prx",
"rx",
"ry",
"rz",
Expand Down
31 changes: 31 additions & 0 deletions src/braket/default_simulator/gate_operations.py
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Original file line number Diff line number Diff line change
Expand Up @@ -810,6 +810,36 @@ def _base_matrix(self) -> np.ndarray:
def _cswap(instruction) -> CSwap:
return CSwap([instruction.control, *instruction.targets])

class PRx(GateOperation):
"""
PhaseRx gate.
"""

def __init__(self, targets, angle_1, angle_2, ctrl_modifiers=(), power=1):
super().__init__(
targets=targets,
ctrl_modifiers=ctrl_modifiers,
power=power,
)
self.angle_1 = angle_1
self.angle_2 = angle_2

@property
def _base_matrix(self) -> np.ndarray:
theta = self.angle_1
phi = self.angle_2
return np.array(
[
[
np.cos(theta / 2),
-1j * np.exp(-1j * phi) * np.sin(theta / 2),
],
[
-1j * np.exp(1j * phi) * np.sin(theta / 2),
np.cos(theta / 2),
],
]
)

class GPi(GateOperation):
"""
Expand Down Expand Up @@ -1035,6 +1065,7 @@ def _base_matrix(self) -> np.ndarray:
"zz": ZZ,
"ccnot": CCNot,
"cswap": CSwap,
"prx": PRx,
"gpi": GPi,
"gpi2": GPi2,
"ms": MS,
Expand Down
1 change: 1 addition & 0 deletions src/braket/default_simulator/state_vector_simulator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -155,6 +155,7 @@ def properties(self) -> GateModelSimulatorDeviceCapabilities:
"ms",
"pswap",
"phaseshift",
"prx",
"rx",
"ry",
"rz",
Expand Down
2 changes: 2 additions & 0 deletions test/unit_tests/braket/default_simulator/openqasm/test_braket_gates.py
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,7 @@
PauliY,
PauliZ,
PhaseShift,
PRx,
PSwap,
RotX,
RotY,
Expand Down Expand Up @@ -92,6 +93,7 @@
("zz", ZZ, 2, (2,)),
("ccnot", CCNot, 3, ()),
("cswap", CSwap, 3, ()),
("prx", PRx, 1, (2, 3)),
("gpi", GPi, 1, (2,)),
("gpi2", GPi2, 1, (2,)),
("ms", MS, 2, (2, 3, 1.4)),
Expand Down
1 change: 1 addition & 0 deletions test/unit_tests/braket/default_simulator/test_density_matrix_simulator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -208,6 +208,7 @@ def test_properties():
"ms",
"pswap",
"phaseshift",
"prx",
"rx",
"ry",
"rz",
Expand Down
1 change: 1 addition & 0 deletions test/unit_tests/braket/default_simulator/test_state_vector_simulator.py
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Original file line number Diff line number Diff line change
Expand Up @@ -156,6 +156,7 @@ def test_properties():
"ms",
"pswap",
"phaseshift",
"prx",
"rx",
"ry",
"rz",
Expand Down
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