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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 _ket_u, _phase
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = TensorProd(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(), _ket_u)
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}{\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) {\otimes} \lvert u \rangle
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
3ExprRangelambda_map: 5
start_index: 6
end_index: 27
4Literal
5Lambdaparameter: 50
body: 7
6Operationoperator: 8
operands: 9
7Operationoperator: 24
operands: 10
8Literal
9ExprTuple11, 37
10ExprTuple12, 13
11Operationoperator: 48
operand: 18
12Operationoperator: 30
operands: 15
13Operationoperator: 16
operands: 17
14ExprTuple18
15ExprTuple37, 19
16Literal
17ExprTuple20, 21
18Variable
19Operationoperator: 44
operands: 22
20Operationoperator: 33
operand: 27
21Operationoperator: 24
operands: 25
22ExprTuple46, 26
23ExprTuple27
24Literal
25ExprTuple28, 29
26Operationoperator: 30
operands: 31
27Literal
28Operationoperator: 44
operands: 32
29Operationoperator: 33
operand: 37
30Literal
31ExprTuple37, 46
32ExprTuple35, 36
33Literal
34ExprTuple37
35Literal
36Operationoperator: 38
operands: 39
37Literal
38Literal
39ExprTuple46, 40, 41, 42, 43
40Literal
41Literal
42Operationoperator: 44
operands: 45
43Literal
44Literal
45ExprTuple46, 47
46Literal
47Operationoperator: 48
operand: 50
48Literal
49ExprTuple50
50Variable