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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 ExprTuple, k, m
from proveit.linear_algebra import ScalarMult, VecSum
from proveit.numbers import Exp, Mult, e, frac, i, one, pi, two
from proveit.physics.quantum import NumBra, NumKet, Qmult
from proveit.physics.quantum.QFT import InverseFourierTransform
from proveit.physics.quantum.QPE import _m_domain, _phase, _t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = NumBra(m, _t)
sub_expr2 = InverseFourierTransform(_t)
sub_expr3 = frac(one, Exp(two, frac(_t, two)))
sub_expr4 = VecSum(index_or_indices = [k], summand = ScalarMult(Exp(e, Mult(two, pi, i, _phase, k)), NumKet(k, _t)), domain = _m_domain)
expr = ExprTuple(Qmult(sub_expr1, sub_expr3, sub_expr2, sub_expr4), Qmult(Qmult(sub_expr1, sub_expr3, sub_expr2), sub_expr4))
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({_{t}}\langle m \rvert \thinspace \frac{1}{2^{\frac{t}{2}}} \thinspace {\mathrm {FT}}^{\dag}_{t} \thinspace \left(\sum_{k=0}^{2^{t} - 1} \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi \cdot k} \cdot \lvert k \rangle_{t}\right)\right), \left({_{t}}\langle m \rvert \thinspace \frac{1}{2^{\frac{t}{2}}} \thinspace {\mathrm {FT}}^{\dag}_{t}\right) \thinspace \left(\sum_{k=0}^{2^{t} - 1} \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi \cdot k} \cdot \lvert k \rangle_{t}\right)\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: 7
operands: 3
2Operationoperator: 7
operands: 4
3ExprTuple11, 12, 13, 6
4ExprTuple5, 6
5Operationoperator: 7
operands: 8
6Operationoperator: 9
operand: 14
7Literal
8ExprTuple11, 12, 13
9Literal
10ExprTuple14
11Operationoperator: 15
operands: 16
12Operationoperator: 35
operands: 17
13Operationoperator: 18
operand: 61
14Lambdaparameter: 53
body: 21
15Literal
16ExprTuple22, 61
17ExprTuple62, 23
18Literal
19ExprTuple61
20ExprTuple53
21Conditionalvalue: 24
condition: 25
22Variable
23Operationoperator: 56
operands: 26
24Operationoperator: 27
operands: 28
25Operationoperator: 29
operands: 30
26ExprTuple60, 31
27Literal
28ExprTuple32, 33
29Literal
30ExprTuple53, 34
31Operationoperator: 35
operands: 36
32Operationoperator: 56
operands: 37
33Operationoperator: 38
operands: 39
34Operationoperator: 40
operands: 41
35Literal
36ExprTuple61, 60
37ExprTuple42, 43
38Literal
39ExprTuple53, 61
40Literal
41ExprTuple44, 45
42Literal
43Operationoperator: 46
operands: 47
44Literal
45Operationoperator: 48
operands: 49
46Literal
47ExprTuple60, 50, 51, 52, 53
48Literal
49ExprTuple54, 55
50Literal
51Literal
52Literal
53Variable
54Operationoperator: 56
operands: 57
55Operationoperator: 58
operand: 62
56Literal
57ExprTuple60, 61
58Literal
59ExprTuple62
60Literal
61Literal
62Literal