logo

Expression of type Equals

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, Variable, t
from proveit.linear_algebra import ScalarMult, VecAdd
from proveit.logic import Equals
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 = Neg(t)
sub_expr3 = frac(one, sqrt(two))
sub_expr4 = ScalarMult(sub_expr3, VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, Exp(two, Neg(sub_expr1)), _phase)), ket1)))
expr = Equals([ExprRange(sub_expr1, sub_expr4, sub_expr2, zero)], [ScalarMult(sub_expr3, VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, two_pow_t, _phase)), ket1))), ExprRange(sub_expr1, sub_expr4, Add(sub_expr2, one), zero)]).with_wrapping_at(2)
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())
\begin{array}{c} \begin{array}{l} \left(\left(\frac{1}{\sqrt{2}} \cdot \left(\lvert 0 \rangle + \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot 2^{-\left(-t\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 + 1\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) =  \\ \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^{-\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) \end{array} \end{array}
In [5]:
stored_expr.style_options()
namedescriptiondefaultcurrent valuerelated methods
operation'infix' or 'function' style formattinginfixinfix
wrap_positionsposition(s) at which wrapping is to occur; '2 n - 1' is after the nth operand, '2 n' is after the nth operation.()(2)('with_wrapping_at', 'with_wrap_before_operator', 'with_wrap_after_operator', 'without_wrapping', 'wrap_positions')
justificationif any wrap positions are set, justify to the 'left', 'center', or 'right'centercenter('with_justification',)
directionDirection of the relation (normal or reversed)normalnormal('with_direction_reversed', 'is_reversed')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3ExprTuple5
4ExprTuple6, 7
5ExprRangelambda_map: 9
start_index: 17
end_index: 37
6Operationoperator: 33
operands: 8
7ExprRangelambda_map: 9
start_index: 10
end_index: 37
8ExprTuple19, 11
9Lambdaparameter: 64
body: 12
10Operationoperator: 13
operands: 14
11Operationoperator: 24
operands: 15
12Operationoperator: 33
operands: 16
13Literal
14ExprTuple17, 49
15ExprTuple28, 18
16ExprTuple19, 20
17Operationoperator: 62
operand: 53
18Operationoperator: 33
operands: 22
19Operationoperator: 41
operands: 23
20Operationoperator: 24
operands: 25
21ExprTuple53
22ExprTuple26, 39
23ExprTuple49, 27
24Literal
25ExprTuple28, 29
26Operationoperator: 58
operands: 30
27Operationoperator: 58
operands: 31
28Operationoperator: 44
operand: 37
29Operationoperator: 33
operands: 34
30ExprTuple47, 35
31ExprTuple60, 36
32ExprTuple37
33Literal
34ExprTuple38, 39
35Operationoperator: 51
operands: 40
36Operationoperator: 41
operands: 42
37Literal
38Operationoperator: 58
operands: 43
39Operationoperator: 44
operand: 49
40ExprTuple60, 54, 55, 46, 57
41Literal
42ExprTuple49, 60
43ExprTuple47, 48
44Literal
45ExprTuple49
46Operationoperator: 58
operands: 50
47Literal
48Operationoperator: 51
operands: 52
49Literal
50ExprTuple60, 53
51Literal
52ExprTuple60, 54, 55, 56, 57
53Variable
54Literal
55Literal
56Operationoperator: 58
operands: 59
57Literal
58Literal
59ExprTuple60, 61
60Literal
61Operationoperator: 62
operand: 64
62Literal
63ExprTuple64
64Variable