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Expression of type Equals

from the theory of proveit.physics.quantum.QPE

In [1]:
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, n
from proveit.logic import Equals, NotEquals, TRUE
from proveit.numbers import Add, Interval, one
from proveit.physics.quantum import NumKet, Z, ket_plus
from proveit.physics.quantum.QPE import QPE, _U, _ket_u, _phase_est_circuit, _s, _s_wire, _t
from proveit.physics.quantum.circuits import Gate, Input, Measure, MultiQubitElem, Output, Qcircuit
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = Add(_t, one)
sub_expr3 = Add(_t, _s)
sub_expr4 = Interval(sub_expr2, sub_expr3)
sub_expr5 = MultiQubitElem(element = Gate(operation = QPE(_U, _t), part = sub_expr1), targets = Interval(one, sub_expr3))
expr = Equals(NotEquals(_phase_est_circuit, Qcircuit(vert_expr_array = VertExprArray([ExprRange(sub_expr1, Input(state = ket_plus), one, _t), ExprRange(sub_expr1, MultiQubitElem(element = Input(state = _ket_u, part = sub_expr1), targets = sub_expr4), one, _s)], [ExprRange(sub_expr1, sub_expr5, one, _t), ExprRange(sub_expr1, sub_expr5, sub_expr2, sub_expr3)], [ExprRange(sub_expr1, Measure(basis = Z), one, _t), _s_wire], [ExprRange(sub_expr1, MultiQubitElem(element = Output(state = NumKet(n, _t), part = sub_expr1), targets = Interval(one, _t)), one, _t), ExprRange(sub_expr1, MultiQubitElem(element = Output(state = _ket_u, part = sub_expr1), targets = sub_expr4), one, _s)]))), TRUE)
expr:
In [3]:
# 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
In [4]:
# Show the LaTeX representation of the expression for convenience if you need it.
print(stored_expr.latex())
\left(\left(\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\qin{\lvert + \rangle} & \multigate{4}{\textrm{QPE}\left(U, t\right)} & \meter & \multiqout{3}{\lvert m \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert m \rangle_{t}} \\
\qin{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} & \ghost{\textrm{QPE}\left(U, t\right)} & \measure{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} \qw & \ghostqout{\lvert m \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert m \rangle_{t}} \\
\qin{\lvert u \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & { /^{s} } \qw & \qout{\lvert u \rangle}
} \end{array}\right) \neq \left(\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\qin{\lvert + \rangle} & \multigate{4}{\textrm{QPE}\left(U, t\right)} & \meter & \multiqout{3}{\lvert n \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert n \rangle_{t}} \\
\qin{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} & \ghost{\textrm{QPE}\left(U, t\right)} & \measure{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} \qw & \ghostqout{\lvert n \rangle_{t}} \\
\qin{\lvert + \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & \meter & \ghostqout{\lvert n \rangle_{t}} \\
\qin{\lvert u \rangle} & \ghost{\textrm{QPE}\left(U, t\right)} & { /^{s} } \qw & \qout{\lvert u \rangle}
} \end{array}\right)\right) = \top
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
operation'infix' or 'function' style formattinginfixinfix
wrap_positionsposition(s) at which wrapping is to occur; '2 n - 1' is after the nth operand, '2 n' is after the nth operation.()()('with_wrapping_at', 'with_wrap_before_operator', 'with_wrap_after_operator', 'without_wrapping', 'wrap_positions')
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'centercenter('with_justification',)
directionDirection of the relation (normal or reversed)normalnormal('with_direction_reversed', 'is_reversed')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 5
operands: 6
4Literal
5Literal
6ExprTuple7, 8
7Operationoperator: 10
operands: 9
8Operationoperator: 10
operands: 11
9ExprTuple13, 14, 15, 12
10Literal
11ExprTuple13, 14, 15, 16
12ExprTuple17, 25
13ExprTuple18, 19
14ExprTuple20, 21
15ExprTuple22, 23
16ExprTuple24, 25
17ExprRangelambda_map: 26
start_index: 96
end_index: 97
18ExprRangelambda_map: 27
start_index: 96
end_index: 97
19ExprRangelambda_map: 28
start_index: 96
end_index: 98
20ExprRangelambda_map: 29
start_index: 96
end_index: 97
21ExprRangelambda_map: 29
start_index: 83
end_index: 84
22ExprRangelambda_map: 30
start_index: 96
end_index: 97
23ExprRangelambda_map: 31
start_index: 96
end_index: 98
24ExprRangelambda_map: 32
start_index: 96
end_index: 97
25ExprRangelambda_map: 33
start_index: 96
end_index: 98
26Lambdaparameter: 82
body: 34
27Lambdaparameter: 82
body: 35
28Lambdaparameter: 82
body: 36
29Lambdaparameter: 82
body: 37
30Lambdaparameter: 82
body: 38
31Lambdaparameter: 82
body: 39
32Lambdaparameter: 82
body: 40
33Lambdaparameter: 82
body: 42
34Operationoperator: 51
operands: 43
35Operationoperator: 67
operands: 44
36Operationoperator: 51
operands: 45
37Operationoperator: 51
operands: 46
38Operationoperator: 47
operands: 48
39Operationoperator: 68
operands: 49
40Operationoperator: 51
operands: 50
41ExprTuple82
42Operationoperator: 51
operands: 52
43NamedExprselement: 53
targets: 61
44NamedExprsstate: 54
45NamedExprselement: 55
targets: 63
46NamedExprselement: 56
targets: 57
47Literal
48NamedExprsbasis: 58
49NamedExprsoperation: 59
50NamedExprselement: 60
targets: 61
51Literal
52NamedExprselement: 62
targets: 63
53Operationoperator: 73
operands: 64
54Operationoperator: 65
operand: 78
55Operationoperator: 67
operands: 74
56Operationoperator: 68
operands: 69
57Operationoperator: 75
operands: 70
58Literal
59Literal
60Operationoperator: 73
operands: 71
61Operationoperator: 75
operands: 72
62Operationoperator: 73
operands: 74
63Operationoperator: 75
operands: 76
64NamedExprsstate: 77
part: 82
65Literal
66ExprTuple78
67Literal
68Literal
69NamedExprsoperation: 79
part: 82
70ExprTuple96, 84
71NamedExprsstate: 80
part: 82
72ExprTuple96, 97
73Literal
74NamedExprsstate: 81
part: 82
75Literal
76ExprTuple83, 84
77Operationoperator: 88
operands: 85
78Literal
79Operationoperator: 86
operands: 87
80Operationoperator: 88
operands: 89
81Literal
82Variable
83Operationoperator: 91
operands: 90
84Operationoperator: 91
operands: 92
85ExprTuple93, 97
86Literal
87ExprTuple94, 97
88Literal
89ExprTuple95, 97
90ExprTuple97, 96
91Literal
92ExprTuple97, 98
93Variable
94Literal
95Variable
96Literal
97Literal
98Literal