logo

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 ExprTuple, k, t
from proveit.linear_algebra import ScalarMult, TensorProd, VecAdd, VecSum
from proveit.numbers import Exp, Interval, Mult, e, frac, i, one, pi, subtract, two, zero
from proveit.physics.quantum import NumKet, ket0, ket1
from proveit.physics.quantum.QPE import _phase, two_pow_t
In [2]:
# build up the expression from sub-expressions
expr = ExprTuple(frac(one, Exp(two, frac(t, two))), TensorProd(VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, _phase, two_pow_t)), ket1)), VecSum(index_or_indices = [k], summand = ScalarMult(Exp(e, Mult(two, pi, i, _phase, k)), NumKet(k, t)), domain = Interval(zero, subtract(two_pow_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(\frac{1}{2^{\frac{t}{2}}}, \left(\lvert 0 \rangle + \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi \cdot 2^{t}} \cdot \lvert 1 \rangle\right)\right) {\otimes} \left(\sum_{k=0}^{2^{t} - 1} \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi \cdot k} \cdot \lvert k \rangle_{t}\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: 18
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple64, 6
4Literal
5ExprTuple7, 8
6Operationoperator: 58
operands: 9
7Operationoperator: 10
operands: 11
8Operationoperator: 12
operand: 17
9ExprTuple62, 14
10Literal
11ExprTuple15, 16
12Literal
13ExprTuple17
14Operationoperator: 18
operands: 19
15Operationoperator: 29
operand: 46
16Operationoperator: 30
operands: 21
17Lambdaparameter: 55
body: 23
18Literal
19ExprTuple63, 62
20ExprTuple46
21ExprTuple24, 25
22ExprTuple55
23Conditionalvalue: 26
condition: 27
24Operationoperator: 58
operands: 28
25Operationoperator: 29
operand: 64
26Operationoperator: 30
operands: 31
27Operationoperator: 32
operands: 33
28ExprTuple44, 34
29Literal
30Literal
31ExprTuple35, 36
32Literal
33ExprTuple55, 37
34Operationoperator: 48
operands: 38
35Operationoperator: 58
operands: 39
36Operationoperator: 40
operands: 41
37Operationoperator: 42
operands: 43
38ExprTuple62, 52, 53, 54, 56
39ExprTuple44, 45
40Literal
41ExprTuple55, 63
42Literal
43ExprTuple46, 47
44Literal
45Operationoperator: 48
operands: 49
46Literal
47Operationoperator: 50
operands: 51
48Literal
49ExprTuple62, 52, 53, 54, 55
50Literal
51ExprTuple56, 57
52Literal
53Literal
54Literal
55Variable
56Operationoperator: 58
operands: 59
57Operationoperator: 60
operand: 64
58Literal
59ExprTuple62, 63
60Literal
61ExprTuple64
62Literal
63Variable
64Literal