set minimal depth for RY variational form to 0 (no entanglement, only initial rotation layer)
@@ -35,7 +35,7 @@ class RY(VariationalForm):
'depth': {
'type': 'integer',
'default': 3,
- 'minimum': 1
+ 'minimum': 0
},
'entanglement': {
'type': 'string',
