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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, ScalarMult(sub_expr3, Qmult(sub_expr2, sub_expr4))), Mult(sub_expr3, Qmult(sub_expr1, 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 \left(\frac{1}{2^{\frac{t}{2}}} \cdot \left({\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)\right)\right), \frac{1}{2^{\frac{t}{2}}} \cdot \left({_{t}}\langle m \rvert \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)\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: 13
operands: 3
2Operationoperator: 50
operands: 4
3ExprTuple11, 5
4ExprTuple9, 6
5Operationoperator: 34
operands: 7
6Operationoperator: 13
operands: 8
7ExprTuple9, 10
8ExprTuple11, 18, 19
9Operationoperator: 28
operands: 12
10Operationoperator: 13
operands: 14
11Operationoperator: 15
operands: 16
12ExprTuple66, 17
13Literal
14ExprTuple18, 19
15Literal
16ExprTuple20, 65
17Operationoperator: 60
operands: 21
18Operationoperator: 22
operand: 65
19Operationoperator: 24
operand: 27
20Variable
21ExprTuple64, 26
22Literal
23ExprTuple65
24Literal
25ExprTuple27
26Operationoperator: 28
operands: 29
27Lambdaparameter: 57
body: 31
28Literal
29ExprTuple65, 64
30ExprTuple57
31Conditionalvalue: 32
condition: 33
32Operationoperator: 34
operands: 35
33Operationoperator: 36
operands: 37
34Literal
35ExprTuple38, 39
36Literal
37ExprTuple57, 40
38Operationoperator: 60
operands: 41
39Operationoperator: 42
operands: 43
40Operationoperator: 44
operands: 45
41ExprTuple46, 47
42Literal
43ExprTuple57, 65
44Literal
45ExprTuple48, 49
46Literal
47Operationoperator: 50
operands: 51
48Literal
49Operationoperator: 52
operands: 53
50Literal
51ExprTuple64, 54, 55, 56, 57
52Literal
53ExprTuple58, 59
54Literal
55Literal
56Literal
57Variable
58Operationoperator: 60
operands: 61
59Operationoperator: 62
operand: 66
60Literal
61ExprTuple64, 65
62Literal
63ExprTuple66
64Literal
65Literal
66Literal