Customizing Clifford operations for qibojit engines

doc/source/api-reference/qibo.rst

@@ -1592,12 +1592,12 @@ passing a symplectic matrix to the constructor.
 .. testsetup::
 
    from qibo.quantum_info import Clifford
-   from qibo.backends import CliffordBackend, NumpyBackend
+   from qibo.backends import CliffordBackend
 
    # construct the |00...0> state
-   backend = CliffordBackend(NumpyBackend())
+   backend = CliffordBackend("numpy")
    symplectic_matrix = backend.zero_state(nqubits=3)
-   clifford = Clifford(symplectic_matrix, engine=NumpyBackend())
+   clifford = Clifford(symplectic_matrix, engine="numpy")
 
 The generators of the stabilizers can be extracted with the
 :meth:`qibo.quantum_info.clifford.Clifford.generators` method,

pyproject.toml

@@ -30,8 +30,8 @@ hyperopt = "^0.2.7"
 tabulate = "^0.9.0"
 numpy = "^1.26.4"
 networkx = "^3.2.1"
-cvxpy = {version = "^1.4.2", optional = true}
-tensorflow = { version = "^2.14.1", markers = "sys_platform == 'linux' or sys_platform == 'darwin'", optional = true}
+cvxpy = { version = "^1.4.2", optional = true }
+tensorflow = { version = "^2.14.1,<2.16", markers = "sys_platform == 'linux' or sys_platform == 'darwin'", optional = true }
 
 [tool.poetry.group.dev]
 optional = true
@@ -67,7 +67,7 @@ pytest-cov = "^4.0.0"
 pylint = "^3.0.3"
 matplotlib = "^3.7.0"
 qibojit = { git = "https://github.com/qiboteam/qibojit.git" }
-tensorflow = { version = "^2.14.1", markers = "sys_platform == 'linux'" }
+tensorflow = { version = "^2.14.1,<2.16", markers = "sys_platform == 'linux'" }
 
 [tool.poe.tasks]
 test = "pytest"

src/qibo/backends/__init__.py

@@ -35,11 +35,6 @@ def construct_backend(backend, platform=None):
 
         return QibolabBackend(platform)
     elif backend == "clifford":
-        if platform is not None:  # pragma: no cover
-            if platform in ("cupy", "numba", "cuquantum"):
-                platform = construct_backend("qibojit", platform=platform)
-            else:
-                platform = construct_backend(platform)
         return CliffordBackend(platform)
 
     else:  # pragma: no cover