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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, two_pow_t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = frac(one, sqrt(two))
expr = ExprTuple(Len(operands = [ScalarMult(sub_expr2, VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, two_pow_t, _phase)), ket1))), ExprRange(sub_expr1, ScalarMult(sub_expr2, VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, Exp(two, Neg(sub_expr1)), _phase)), ket1))), Add(Neg(t), one), zero).with_decreasing_order()]), Len(operands = [ExprRange(sub_expr1, sub_expr1, one, Add(t, one))]))
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} \cdot \varphi} \cdot \lvert 1 \rangle\right)\right),\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)|, |\left(1, 2, \ldots, \left(t + 1\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: 4
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple6, 7
4Literal
5ExprTuple8
6Operationoperator: 37
operands: 9
7ExprRangelambda_map: 10
start_index: 11
end_index: 41
8ExprRangelambda_map: 12
start_index: 53
end_index: 13
9ExprTuple23, 14
10Lambdaparameter: 68
body: 15
11Operationoperator: 17
operands: 16
12Lambdaparameter: 68
body: 68
13Operationoperator: 17
operands: 18
14Operationoperator: 28
operands: 19
15Operationoperator: 37
operands: 20
16ExprTuple21, 53
17Literal
18ExprTuple57, 53
19ExprTuple32, 22
20ExprTuple23, 24
21Operationoperator: 66
operand: 57
22Operationoperator: 37
operands: 26
23Operationoperator: 45
operands: 27
24Operationoperator: 28
operands: 29
25ExprTuple57
26ExprTuple30, 43
27ExprTuple53, 31
28Literal
29ExprTuple32, 33
30Operationoperator: 62
operands: 34
31Operationoperator: 62
operands: 35
32Operationoperator: 48
operand: 41
33Operationoperator: 37
operands: 38
34ExprTuple51, 39
35ExprTuple64, 40
36ExprTuple41
37Literal
38ExprTuple42, 43
39Operationoperator: 55
operands: 44
40Operationoperator: 45
operands: 46
41Literal
42Operationoperator: 62
operands: 47
43Operationoperator: 48
operand: 53
44ExprTuple64, 58, 59, 50, 61
45Literal
46ExprTuple53, 64
47ExprTuple51, 52
48Literal
49ExprTuple53
50Operationoperator: 62
operands: 54
51Literal
52Operationoperator: 55
operands: 56
53Literal
54ExprTuple64, 57
55Literal
56ExprTuple64, 58, 59, 60, 61
57Variable
58Literal
59Literal
60Operationoperator: 62
operands: 63
61Literal
62Literal
63ExprTuple64, 65
64Literal
65Operationoperator: 66
operand: 68
66Literal
67ExprTuple68
68Variable