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Expression of type ExprTuple

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, ExprTuple, Variable, VertExprArray, m
from proveit.numbers import Add, Interval, one
from proveit.physics.quantum import NumKet, Z
from proveit.physics.quantum.QPE import _Psi_ket, _ket_u, _s, _s_wire, _t
from proveit.physics.quantum.circuits import Input, Measure, MultiQubitElem, Output, Qcircuit
from proveit.statistics import Prob
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = Interval(one, _t)
sub_expr3 = ExprRange(sub_expr1, Measure(basis = Z), one, _t)
sub_expr4 = Interval(Add(_t, one), Add(_t, _s))
sub_expr5 = ExprRange(sub_expr1, MultiQubitElem(element = Input(state = _Psi_ket, part = sub_expr1), targets = sub_expr2), one, _t)
sub_expr6 = ExprRange(sub_expr1, MultiQubitElem(element = Output(state = NumKet(m, _t), part = sub_expr1), targets = sub_expr2), one, _t)
expr = ExprTuple(Prob(Qcircuit(vert_expr_array = VertExprArray([sub_expr5], [sub_expr3], [sub_expr6]))), Prob(Qcircuit(vert_expr_array = VertExprArray([sub_expr5, ExprRange(sub_expr1, MultiQubitElem(element = Input(state = _ket_u, part = sub_expr1), targets = sub_expr4), one, _s)], [sub_expr3, _s_wire], [sub_expr6, ExprRange(sub_expr1, MultiQubitElem(element = Output(state = _ket_u, part = sub_expr1), targets = sub_expr4), one, _s)]))))
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(\textrm{Pr}\left(\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\multiqin{3}{\lvert \Psi \rangle} & \meter & \multiqout{3}{\lvert m \rangle_{t}} \\
\ghostqin{\lvert \Psi \rangle} & \meter & \ghostqout{\lvert m \rangle_{t}} \\
\ghostqin{\lvert \Psi \rangle} & \measure{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} \qw & \ghostqout{\lvert m \rangle_{t}} \\
\ghostqin{\lvert \Psi \rangle} & \meter & \ghostqout{\lvert m \rangle_{t}}
} \end{array}\right), \textrm{Pr}\left(\begin{array}{c} \Qcircuit@C=1em @R=.7em{
\multiqin{3}{\lvert \Psi \rangle} & \meter & \multiqout{3}{\lvert m \rangle_{t}} \\
\ghostqin{\lvert \Psi \rangle} & \meter & \ghostqout{\lvert m \rangle_{t}} \\
\ghostqin{\lvert \Psi \rangle} & \measure{\begin{array}{c}:\\ \left(t - 3\right) \times \\:\end{array}} \qw & \ghostqout{\lvert m \rangle_{t}} \\
\ghostqin{\lvert \Psi \rangle} & \meter & \ghostqout{\lvert m \rangle_{t}} \\
\qin{\lvert u \rangle} & { /^{s} } \qw & \qout{\lvert u \rangle}
} \end{array}\right)\right)
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
wrap_positionsposition(s) at which wrapping is to occur; 'n' is after the nth comma.()()('with_wrapping_at',)
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'leftleft('with_justification',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1, 2
1Operationoperator: 4
operand: 6
2Operationoperator: 4
operand: 7
3ExprTuple6
4Literal
5ExprTuple7
6Operationoperator: 9
operands: 8
7Operationoperator: 9
operands: 10
8ExprTuple11, 12, 13
9Literal
10ExprTuple14, 15, 16
11ExprTuple17
12ExprTuple19
13ExprTuple21
14ExprTuple17, 18
15ExprTuple19, 20
16ExprTuple21, 22
17ExprRangelambda_map: 23
start_index: 73
end_index: 74
18ExprRangelambda_map: 24
start_index: 73
end_index: 75
19ExprRangelambda_map: 25
start_index: 73
end_index: 74
20ExprRangelambda_map: 26
start_index: 73
end_index: 75
21ExprRangelambda_map: 27
start_index: 73
end_index: 74
22ExprRangelambda_map: 28
start_index: 73
end_index: 75
23Lambdaparameter: 64
body: 29
24Lambdaparameter: 64
body: 30
25Lambdaparameter: 64
body: 31
26Lambdaparameter: 64
body: 32
27Lambdaparameter: 64
body: 33
28Lambdaparameter: 64
body: 35
29Operationoperator: 43
operands: 36
30Operationoperator: 43
operands: 37
31Operationoperator: 38
operands: 39
32Operationoperator: 40
operands: 41
33Operationoperator: 43
operands: 42
34ExprTuple64
35Operationoperator: 43
operands: 44
36NamedExprselement: 45
targets: 50
37NamedExprselement: 46
targets: 52
38Literal
39NamedExprsbasis: 47
40Literal
41NamedExprsoperation: 48
42NamedExprselement: 49
targets: 50
43Literal
44NamedExprselement: 51
targets: 52
45Operationoperator: 54
operands: 53
46Operationoperator: 54
operands: 58
47Literal
48Literal
49Operationoperator: 57
operands: 55
50Operationoperator: 59
operands: 56
51Operationoperator: 57
operands: 58
52Operationoperator: 59
operands: 60
53NamedExprsstate: 61
part: 64
54Literal
55NamedExprsstate: 62
part: 64
56ExprTuple73, 74
57Literal
58NamedExprsstate: 63
part: 64
59Literal
60ExprTuple65, 66
61Literal
62Operationoperator: 67
operands: 68
63Literal
64Variable
65Operationoperator: 70
operands: 69
66Operationoperator: 70
operands: 71
67Literal
68ExprTuple72, 74
69ExprTuple74, 73
70Literal
71ExprTuple74, 75
72Variable
73Literal
74Literal
75Literal