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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 _ket_u, _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(), _ket_u)
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), \lvert u \rangle\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
1ExprRangelambda_map: 3
start_index: 4
end_index: 25
2Literal
3Lambdaparameter: 48
body: 5
4Operationoperator: 6
operands: 7
5Operationoperator: 22
operands: 8
6Literal
7ExprTuple9, 35
8ExprTuple10, 11
9Operationoperator: 46
operand: 16
10Operationoperator: 28
operands: 13
11Operationoperator: 14
operands: 15
12ExprTuple16
13ExprTuple35, 17
14Literal
15ExprTuple18, 19
16Variable
17Operationoperator: 42
operands: 20
18Operationoperator: 31
operand: 25
19Operationoperator: 22
operands: 23
20ExprTuple44, 24
21ExprTuple25
22Literal
23ExprTuple26, 27
24Operationoperator: 28
operands: 29
25Literal
26Operationoperator: 42
operands: 30
27Operationoperator: 31
operand: 35
28Literal
29ExprTuple35, 44
30ExprTuple33, 34
31Literal
32ExprTuple35
33Literal
34Operationoperator: 36
operands: 37
35Literal
36Literal
37ExprTuple44, 38, 39, 40, 41
38Literal
39Literal
40Operationoperator: 42
operands: 43
41Literal
42Literal
43ExprTuple44, 45
44Literal
45Operationoperator: 46
operand: 48
46Literal
47ExprTuple48
48Variable