Expression of type Qcircuit ¶

from the theory of proveit.physics.quantum.QPE ¶

import proveit
# Automation is not needed when building an expression:
proveit.defaults.automation = False # This will speed things up.
proveit.defaults.inline_pngs = False # Makes files smaller.
%load_expr # Load the stored expression as 'stored_expr'
# import Expression classes needed to build the expression
from proveit import ExprRange, Variable, VertExprArray
from proveit.linear_algebra import TensorProd
from proveit.numbers import Add, Interval, one
from proveit.physics.quantum import I
from proveit.physics.quantum.QFT import InverseFourierTransform
from proveit.physics.quantum.QPE import _Psi_ket, _ket_u, _psi__t_ket, _s, _t
from proveit.physics.quantum.circuits import Gate, Input, MultiQubitElem, Output, Qcircuit

# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = Add(_t, _s)
sub_expr3 = Add(_t, one)
sub_expr4 = Interval(one, _t)
sub_expr5 = MultiQubitElem(element = Input(state = TensorProd(_psi__t_ket, _ket_u), part = sub_expr1), targets = Interval(one, sub_expr2))
expr = Qcircuit(vert_expr_array = VertExprArray([ExprRange(sub_expr1, sub_expr5, one, _t).with_wrapping_at(2,6), ExprRange(sub_expr1, sub_expr5, sub_expr3, sub_expr2).with_wrapping_at(2,6)], [ExprRange(sub_expr1, MultiQubitElem(element = Gate(operation = InverseFourierTransform(_t), part = sub_expr1), targets = sub_expr4), one, _t), ExprRange(sub_expr1, Gate(operation = I).with_implicit_representation(), one, _s)], [ExprRange(sub_expr1, MultiQubitElem(element = Output(state = _Psi_ket, part = sub_expr1), targets = sub_expr4), one, _t), ExprRange(sub_expr1, MultiQubitElem(element = Output(state = _ket_u, part = sub_expr1), targets = Interval(sub_expr3, sub_expr2)), one, _s)]))

# check that the built expression is the same as the stored expression
assert expr == stored_expr
assert expr._style_id == stored_expr._style_id
print("Passed sanity check: expr matches stored_expr")

Passed sanity check: expr matches stored_expr

# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())

\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\multiqin{1}{\lvert \psi_{t} \rangle {\otimes} \lvert u \rangle} & \gate{{\mathrm {FT}}^{\dag}_{t}} & \qout{\lvert \Psi \rangle} \\
\ghostqin{\lvert \psi_{t} \rangle {\otimes} \lvert u \rangle} & { /^{s} } \qw & \qout{\lvert u \rangle}
} \end{array}

stored_expr.style_options()

# display the expression information
stored_expr.expr_info()

	core type	sub-expressions
0	Operation	operator: 1 operands: 2
1	Literal
2	ExprTuple	3, 4, 5
3	ExprTuple	6, 7
4	ExprTuple	8, 9
5	ExprTuple	10, 11
6	ExprRange	lambda_map: 12 start_index: 62 end_index: 66
7	ExprRange	lambda_map: 12 start_index: 52 end_index: 53
8	ExprRange	lambda_map: 13 start_index: 62 end_index: 66
9	ExprRange	lambda_map: 14 start_index: 62 end_index: 63
10	ExprRange	lambda_map: 15 start_index: 62 end_index: 66
11	ExprRange	lambda_map: 16 start_index: 62 end_index: 63
12	Lambda	parameter: 51 body: 17
13	Lambda	parameter: 51 body: 18
14	Lambda	parameter: 51 body: 19
15	Lambda	parameter: 51 body: 20
16	Lambda	parameter: 51 body: 22
17	Operation	operator: 27 operands: 23
18	Operation	operator: 27 operands: 24
19	Operation	operator: 40 operands: 25
20	Operation	operator: 27 operands: 26
21	ExprTuple	51
22	Operation	operator: 27 operands: 28
23	NamedExprs	element: 29 targets: 30
24	NamedExprs	element: 31 targets: 34
25	NamedExprs	operation: 32
26	NamedExprs	element: 33 targets: 34
27	Literal
28	NamedExprs	element: 35 targets: 36
29	Operation	operator: 37 operands: 38
30	Operation	operator: 46 operands: 39
31	Operation	operator: 40 operands: 41
32	Literal
33	Operation	operator: 44 operands: 42
34	Operation	operator: 46 operands: 43
35	Operation	operator: 44 operands: 45
36	Operation	operator: 46 operands: 47
37	Literal
38	NamedExprs	state: 48 part: 51
39	ExprTuple	62, 53
40	Literal
41	NamedExprs	operation: 49 part: 51
42	NamedExprs	state: 50 part: 51
43	ExprTuple	62, 66
44	Literal
45	NamedExprs	state: 61 part: 51
46	Literal
47	ExprTuple	52, 53
48	Operation	operator: 54 operands: 55
49	Operation	operator: 56 operand: 66
50	Literal
51	Variable
52	Operation	operator: 58 operands: 57
53	Operation	operator: 58 operands: 59
54	Literal
55	ExprTuple	60, 61
56	Literal
57	ExprTuple	66, 62
58	Literal
59	ExprTuple	66, 63
60	Operation	operator: 64 operand: 66
61	Literal
62	Literal
63	Literal
64	Literal
65	ExprTuple	66
66	Literal

Expression of type Qcircuit¶

from the theory of proveit.physics.quantum.QPE¶

Expression of type Qcircuit ¶

from the theory of proveit.physics.quantum.QPE ¶