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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 ExprRange, ExprTuple, Lambda, Variable
from proveit.core_expr_types import Len
from proveit.linear_algebra import TensorProd
from proveit.numbers import Add, Interval, one, six
from proveit.physics.quantum import I
from proveit.physics.quantum.QFT import InverseFourierTransform
from proveit.physics.quantum.QPE import _Psi_ket, _ket_u, _psi__t_ket, _s, _t
from proveit.physics.quantum.circuits import Gate, Input, MultiQubitElem, Output
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
sub_expr2 = Add(_t, _s)
sub_expr3 = Interval(one, _t)
sub_expr4 = Lambda(sub_expr1, MultiQubitElem(element = Input(state = TensorProd(_psi__t_ket, _ket_u), part = sub_expr1), targets = Interval(one, sub_expr2)))
expr = ExprTuple(Len(operands = [sub_expr4, sub_expr4, Lambda(sub_expr1, MultiQubitElem(element = Gate(operation = InverseFourierTransform(_t), part = sub_expr1), targets = sub_expr3)), Lambda(sub_expr1, Gate(operation = I).with_implicit_representation()), Lambda(sub_expr1, MultiQubitElem(element = Output(state = _Psi_ket, part = sub_expr1), targets = sub_expr3)), Lambda(sub_expr1, MultiQubitElem(element = Output(state = _ket_u, part = sub_expr1), targets = Interval(Add(_t, one), sub_expr2)))]), Len(operands = [ExprRange(sub_expr1, sub_expr1, one, six)]))
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(|\left({_{-}a} \mapsto \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& \qin{\lvert \psi_{t} \rangle {\otimes} \lvert u \rangle~\mbox{part}~{_{-}a}~\mbox{on}~\{1~\ldotp \ldotp~t + s\}} & \qw 
} \end{array}, {_{-}a} \mapsto \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& \qin{\lvert \psi_{t} \rangle {\otimes} \lvert u \rangle~\mbox{part}~{_{-}a}~\mbox{on}~\{1~\ldotp \ldotp~t + s\}} & \qw 
} \end{array}, {_{-}a} \mapsto \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \gate{{\mathrm {FT}}^{\dag}_{t}~\mbox{part}~{_{-}a}~\mbox{on}~\{1~\ldotp \ldotp~t\}} & \qw 
} \end{array}, {_{-}a} \mapsto \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \qw & \qw 
} \end{array}, {_{-}a} \mapsto \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \qout{\lvert \Psi \rangle~\mbox{part}~{_{-}a}~\mbox{on}~\{1~\ldotp \ldotp~t\}} 
} \end{array}, {_{-}a} \mapsto \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \qout{\lvert u \rangle~\mbox{part}~{_{-}a}~\mbox{on}~\{t + 1~\ldotp \ldotp~t + s\}} 
} \end{array}\right)|, |\left(1, 2, \ldots, 6\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: 4
operands: 3
2Operationoperator: 4
operands: 5
3ExprTuple6, 6, 7, 8, 9, 10
4Literal
5ExprTuple11
6Lambdaparameter: 48
body: 12
7Lambdaparameter: 48
body: 13
8Lambdaparameter: 48
body: 14
9Lambdaparameter: 48
body: 15
10Lambdaparameter: 48
body: 16
11ExprRangelambda_map: 17
start_index: 59
end_index: 18
12Operationoperator: 23
operands: 19
13Operationoperator: 23
operands: 20
14Operationoperator: 37
operands: 21
15Operationoperator: 23
operands: 22
16Operationoperator: 23
operands: 24
17Lambdaparameter: 48
body: 48
18Literal
19NamedExprselement: 26
targets: 27
20NamedExprselement: 28
targets: 31
21NamedExprsoperation: 29
22NamedExprselement: 30
targets: 31
23Literal
24NamedExprselement: 32
targets: 33
25ExprTuple48
26Operationoperator: 34
operands: 35
27Operationoperator: 43
operands: 36
28Operationoperator: 37
operands: 38
29Literal
30Operationoperator: 41
operands: 39
31Operationoperator: 43
operands: 40
32Operationoperator: 41
operands: 42
33Operationoperator: 43
operands: 44
34Literal
35NamedExprsstate: 45
part: 48
36ExprTuple59, 50
37Literal
38NamedExprsoperation: 46
part: 48
39NamedExprsstate: 47
part: 48
40ExprTuple59, 63
41Literal
42NamedExprsstate: 58
part: 48
43Literal
44ExprTuple49, 50
45Operationoperator: 51
operands: 52
46Operationoperator: 53
operand: 63
47Literal
48Variable
49Operationoperator: 55
operands: 54
50Operationoperator: 55
operands: 56
51Literal
52ExprTuple57, 58
53Literal
54ExprTuple63, 59
55Literal
56ExprTuple63, 60
57Operationoperator: 61
operand: 63
58Literal
59Literal
60Literal
61Literal
62ExprTuple63
63Literal