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Expression of type TensorProd

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 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 = TensorProd(VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, _phase, two_pow_t)), ket1)), ScalarMult(frac(one, Exp(two, frac(t, two))), 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(\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(\frac{1}{2^{\frac{t}{2}}} \cdot \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
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.()()('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',)
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 5
operands: 6
4Operationoperator: 33
operands: 7
5Literal
6ExprTuple8, 9
7ExprTuple10, 11
8Operationoperator: 22
operand: 47
9Operationoperator: 33
operands: 13
10Operationoperator: 31
operands: 14
11Operationoperator: 15
operand: 20
12ExprTuple47
13ExprTuple17, 18
14ExprTuple65, 19
15Literal
16ExprTuple20
17Operationoperator: 59
operands: 21
18Operationoperator: 22
operand: 65
19Operationoperator: 59
operands: 23
20Lambdaparameter: 56
body: 25
21ExprTuple45, 26
22Literal
23ExprTuple63, 27
24ExprTuple56
25Conditionalvalue: 28
condition: 29
26Operationoperator: 49
operands: 30
27Operationoperator: 31
operands: 32
28Operationoperator: 33
operands: 34
29Operationoperator: 35
operands: 36
30ExprTuple63, 53, 54, 55, 57
31Literal
32ExprTuple64, 63
33Literal
34ExprTuple37, 38
35Literal
36ExprTuple56, 39
37Operationoperator: 59
operands: 40
38Operationoperator: 41
operands: 42
39Operationoperator: 43
operands: 44
40ExprTuple45, 46
41Literal
42ExprTuple56, 64
43Literal
44ExprTuple47, 48
45Literal
46Operationoperator: 49
operands: 50
47Literal
48Operationoperator: 51
operands: 52
49Literal
50ExprTuple63, 53, 54, 55, 56
51Literal
52ExprTuple57, 58
53Literal
54Literal
55Literal
56Variable
57Operationoperator: 59
operands: 60
58Operationoperator: 61
operand: 65
59Literal
60ExprTuple63, 64
61Literal
62ExprTuple65
63Literal
64Variable
65Literal