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, VecSum
from proveit.numbers import Exp, Interval, Mult, e, 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
sub_expr1 = 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 = ExprTuple(TensorProd(ket0, sub_expr1), ScalarMult(Exp(e, Mult(two, pi, i, _phase, two_pow_t)), TensorProd(ket1, sub_expr1)))
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(\lvert 0 \rangle {\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), \mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi \cdot 2^{t}} \cdot \left(\lvert 1 \rangle {\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)\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: 10
operands: 3
2Operationoperator: 24
operands: 4
3ExprTuple5, 14
4ExprTuple6, 7
5Operationoperator: 16
operand: 38
6Operationoperator: 50
operands: 9
7Operationoperator: 10
operands: 11
8ExprTuple38
9ExprTuple36, 12
10Literal
11ExprTuple13, 14
12Operationoperator: 40
operands: 15
13Operationoperator: 16
operand: 56
14Operationoperator: 17
operand: 19
15ExprTuple54, 44, 45, 46, 48
16Literal
17Literal
18ExprTuple19
19Lambdaparameter: 47
body: 21
20ExprTuple47
21Conditionalvalue: 22
condition: 23
22Operationoperator: 24
operands: 25
23Operationoperator: 26
operands: 27
24Literal
25ExprTuple28, 29
26Literal
27ExprTuple47, 30
28Operationoperator: 50
operands: 31
29Operationoperator: 32
operands: 33
30Operationoperator: 34
operands: 35
31ExprTuple36, 37
32Literal
33ExprTuple47, 55
34Literal
35ExprTuple38, 39
36Literal
37Operationoperator: 40
operands: 41
38Literal
39Operationoperator: 42
operands: 43
40Literal
41ExprTuple54, 44, 45, 46, 47
42Literal
43ExprTuple48, 49
44Literal
45Literal
46Literal
47Variable
48Operationoperator: 50
operands: 51
49Operationoperator: 52
operand: 56
50Literal
51ExprTuple54, 55
52Literal
53ExprTuple56
54Literal
55Variable
56Literal