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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, t
from proveit.linear_algebra import ScalarMult, VecAdd
from proveit.numbers import Add, Exp, Mult, Neg, e, frac, i, one, pi, sqrt, two, zero
from proveit.physics.quantum import ket0, ket1
from proveit.physics.quantum.QPE import _phase
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = ExprTuple(ExprRange(sub_expr1, ScalarMult(frac(one, sqrt(two)), VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, Exp(two, Neg(sub_expr1)), _phase)), ket1))), Add(Neg(t), one), zero).with_decreasing_order())
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(\frac{1}{\sqrt{2}} \cdot \left(\lvert 0 \rangle + \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot 2^{t - 1} \cdot \varphi} \cdot \lvert 1 \rangle\right)\right)\right), \left(\frac{1}{\sqrt{2}} \cdot \left(\lvert 0 \rangle + \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot 2^{t - 2} \cdot \varphi} \cdot \lvert 1 \rangle\right)\right)\right), \ldots, \left(\frac{1}{\sqrt{2}} \cdot \left(\lvert 0 \rangle + \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot 2^{0} \cdot \varphi} \cdot \lvert 1 \rangle\right)\right)\right)\right)
In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1
1ExprRangelambda_map: 2
start_index: 3
end_index: 24
2Lambdaparameter: 47
body: 4
3Operationoperator: 5
operands: 6
4Operationoperator: 21
operands: 7
5Literal
6ExprTuple8, 34
7ExprTuple9, 10
8Operationoperator: 45
operand: 15
9Operationoperator: 27
operands: 12
10Operationoperator: 13
operands: 14
11ExprTuple15
12ExprTuple34, 16
13Literal
14ExprTuple17, 18
15Variable
16Operationoperator: 41
operands: 19
17Operationoperator: 30
operand: 24
18Operationoperator: 21
operands: 22
19ExprTuple43, 23
20ExprTuple24
21Literal
22ExprTuple25, 26
23Operationoperator: 27
operands: 28
24Literal
25Operationoperator: 41
operands: 29
26Operationoperator: 30
operand: 34
27Literal
28ExprTuple34, 43
29ExprTuple32, 33
30Literal
31ExprTuple34
32Literal
33Operationoperator: 35
operands: 36
34Literal
35Literal
36ExprTuple43, 37, 38, 39, 40
37Literal
38Literal
39Operationoperator: 41
operands: 42
40Literal
41Literal
42ExprTuple43, 44
43Literal
44Operationoperator: 45
operand: 47
45Literal
46ExprTuple47
47Variable