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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.core_expr_types import Len
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(Len(operands = [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)]), Variable("_b", latex_format = r"{_{-}b}"))
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(\left(\frac{1}{\sqrt{2}} \cdot \left(\lvert 0 \rangle + \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot 2^{-\left(-t + 1\right)} \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^{-\left(-t + 2\right)} \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)|, {_{-}b}\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: 3
operands: 4
2Variable
3Literal
4ExprTuple5
5ExprRangelambda_map: 6
start_index: 7
end_index: 28
6Lambdaparameter: 51
body: 8
7Operationoperator: 9
operands: 10
8Operationoperator: 25
operands: 11
9Literal
10ExprTuple12, 38
11ExprTuple13, 14
12Operationoperator: 49
operand: 19
13Operationoperator: 31
operands: 16
14Operationoperator: 17
operands: 18
15ExprTuple19
16ExprTuple38, 20
17Literal
18ExprTuple21, 22
19Variable
20Operationoperator: 45
operands: 23
21Operationoperator: 34
operand: 28
22Operationoperator: 25
operands: 26
23ExprTuple47, 27
24ExprTuple28
25Literal
26ExprTuple29, 30
27Operationoperator: 31
operands: 32
28Literal
29Operationoperator: 45
operands: 33
30Operationoperator: 34
operand: 38
31Literal
32ExprTuple38, 47
33ExprTuple36, 37
34Literal
35ExprTuple38
36Literal
37Operationoperator: 39
operands: 40
38Literal
39Literal
40ExprTuple47, 41, 42, 43, 44
41Literal
42Literal
43Operationoperator: 45
operands: 46
44Literal
45Literal
46ExprTuple47, 48
47Literal
48Operationoperator: 49
operand: 51
49Literal
50ExprTuple51
51Variable