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Make the expectation functions traceable by MPMPMPMPMPMPMP · Pull Request #4 · variPEPS/variPEPS_Python · GitHub

/ variPEPS_Python Public

Make the expectation functions traceable #4

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Make the expectation functions traceable #4

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19 changes: 2 additions & 17 deletions varipeps/expectation/three_sites.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,15 +11,14 @@
Corner_Literal = Literal["top-left", "top-right", "bottom-left", "bottom-right"]


@partial(jit, static_argnums=(5, 6))
@partial(jit, static_argnums=(5,))
def _three_site_triangle_workhorse(
top_left: jnp.ndarray,
top_right: jnp.ndarray,
bottom_left: jnp.ndarray,
bottom_right: jnp.ndarray,
gates: Tuple[jnp.ndarray, ...],
traced: Corner_Literal,
real_result: bool = False,
) -> List[jnp.ndarray]:
if traced == "top-left":
one_physical_sites = jnp.tensordot(top_left, top_right, ((3, 4, 5), (2, 3, 4)))
Expand Down Expand Up @@ -64,13 +63,7 @@ def _three_site_triangle_workhorse(

norm = jnp.trace(density_matrix)

if real_result:
return [
jnp.real(jnp.tensordot(density_matrix, g, ((0, 1), (0, 1))) / norm)
for g in gates
]
else:
return [
return [
jnp.tensordot(density_matrix, g, ((0, 1), (0, 1))) / norm for g in gates
]

Expand Down Expand Up @@ -128,7 +121,6 @@ def calc_three_sites_triangle_without_top_left_multiple_gates(
[],
)

real_result = all(jnp.allclose(g, g.T.conj()) for g in gates)

return _three_site_triangle_workhorse(
traced_density_matrix_top_left,
Expand All @@ -137,7 +129,6 @@ def calc_three_sites_triangle_without_top_left_multiple_gates(
density_matrix_bottom_right,
tuple(gates),
"top-left",
real_result,
)


Expand Down Expand Up @@ -233,7 +224,6 @@ def calc_three_sites_triangle_without_top_right_multiple_gates(
[],
)

real_result = all(jnp.allclose(g, g.T.conj()) for g in gates)

return _three_site_triangle_workhorse(
density_matrix_top_left,
Expand All @@ -242,7 +232,6 @@ def calc_three_sites_triangle_without_top_right_multiple_gates(
density_matrix_bottom_right,
tuple(gates),
"top-right",
real_result,
)


Expand Down Expand Up @@ -338,7 +327,6 @@ def calc_three_sites_triangle_without_bottom_left_multiple_gates(
[],
)

real_result = all(jnp.allclose(g, g.T.conj()) for g in gates)

return _three_site_triangle_workhorse(
density_matrix_top_left,
Expand All @@ -347,7 +335,6 @@ def calc_three_sites_triangle_without_bottom_left_multiple_gates(
density_matrix_bottom_right,
tuple(gates),
"bottom-left",
real_result,
)


Expand Down Expand Up @@ -443,7 +430,6 @@ def calc_three_sites_triangle_without_bottom_right_multiple_gates(
[],
)

real_result = all(jnp.allclose(g, g.T.conj()) for g in gates)

return _three_site_triangle_workhorse(
density_matrix_top_left,
Expand All @@ -452,7 +438,6 @@ def calc_three_sites_triangle_without_bottom_right_multiple_gates(
traced_density_matrix_bottom_right,
tuple(gates),
"bottom-right",
real_result,
)


Expand Down
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