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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 ExprRange, Variable, t
from proveit.linear_algebra import ScalarMult, TensorProd, 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 _phase, two_pow_t
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = TensorProd(VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, two_pow_t, _phase)), ket1)), 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())
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 2^{t} \cdot \varphi} \cdot \lvert 1 \rangle\right)\right){\otimes} \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) {\otimes}  \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) {\otimes}  \ldots {\otimes}  \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)
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: 21
operands: 5
4ExprRangelambda_map: 6
start_index: 7
end_index: 34
5ExprTuple25, 8
6Lambdaparameter: 59
body: 9
7Operationoperator: 10
operands: 11
8Operationoperator: 30
operands: 12
9Operationoperator: 30
operands: 13
10Literal
11ExprTuple14, 46
12ExprTuple15, 36
13ExprTuple16, 17
14Operationoperator: 57
operand: 43
15Operationoperator: 53
operands: 19
16Operationoperator: 38
operands: 20
17Operationoperator: 21
operands: 22
18ExprTuple43
19ExprTuple44, 23
20ExprTuple46, 24
21Literal
22ExprTuple25, 26
23Operationoperator: 47
operands: 27
24Operationoperator: 53
operands: 28
25Operationoperator: 41
operand: 34
26Operationoperator: 30
operands: 31
27ExprTuple55, 49, 50, 32, 52
28ExprTuple55, 33
29ExprTuple34
30Literal
31ExprTuple35, 36
32Operationoperator: 53
operands: 37
33Operationoperator: 38
operands: 39
34Literal
35Operationoperator: 53
operands: 40
36Operationoperator: 41
operand: 46
37ExprTuple55, 43
38Literal
39ExprTuple46, 55
40ExprTuple44, 45
41Literal
42ExprTuple46
43Variable
44Literal
45Operationoperator: 47
operands: 48
46Literal
47Literal
48ExprTuple55, 49, 50, 51, 52
49Literal
50Literal
51Operationoperator: 53
operands: 54
52Literal
53Literal
54ExprTuple55, 56
55Literal
56Operationoperator: 57
operand: 59
57Literal
58ExprTuple59
59Variable