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Expression of type InSet

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 t
from proveit.linear_algebra import ScalarMult, VecAdd
from proveit.logic import InSet
from proveit.numbers import Add, Exp, Mult, e, frac, i, one, pi, subtract, two
from proveit.physics.quantum import QubitSpace, ket0, ket1
from proveit.physics.quantum.QPE import _phase, two_pow_t
In [2]:
# build up the expression from sub-expressions
expr = InSet(ScalarMult(frac(one, Exp(two, subtract(frac(Add(t, one), two), frac(t, two)))), VecAdd(ket0, ScalarMult(Exp(e, Mult(two, pi, i, _phase, two_pow_t)), ket1))), QubitSpace)
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 + 1}{2} - \frac{t}{2}}} \cdot \left(\lvert 0 \rangle + \left(\mathsf{e}^{2 \cdot \pi \cdot \mathsf{i} \cdot \varphi \cdot 2^{t}} \cdot \lvert 1 \rangle\right)\right)\right) \in \mathbb{C}^{2}
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',)
directionDirection of the relation (normal or reversed)normalnormal('with_direction_reversed', 'is_reversed')
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0Operationoperator: 1
operands: 2
1Literal
2ExprTuple3, 4
3Operationoperator: 19
operands: 5
4Operationoperator: 6
operands: 7
5ExprTuple8, 9
6Literal
7ExprTuple10, 51
8Operationoperator: 46
operands: 11
9Operationoperator: 12
operands: 13
10Literal
11ExprTuple50, 14
12Literal
13ExprTuple15, 16
14Operationoperator: 48
operands: 17
15Operationoperator: 27
operand: 22
16Operationoperator: 19
operands: 20
17ExprTuple51, 21
18ExprTuple22
19Literal
20ExprTuple23, 24
21Operationoperator: 44
operands: 25
22Literal
23Operationoperator: 48
operands: 26
24Operationoperator: 27
operand: 50
25ExprTuple29, 30
26ExprTuple31, 32
27Literal
28ExprTuple50
29Operationoperator: 46
operands: 33
30Operationoperator: 34
operand: 39
31Literal
32Operationoperator: 36
operands: 37
33ExprTuple38, 51
34Literal
35ExprTuple39
36Literal
37ExprTuple51, 40, 41, 42, 43
38Operationoperator: 44
operands: 45
39Operationoperator: 46
operands: 47
40Literal
41Literal
42Literal
43Operationoperator: 48
operands: 49
44Literal
45ExprTuple52, 50
46Literal
47ExprTuple52, 51
48Literal
49ExprTuple51, 52
50Literal
51Literal
52Variable