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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, Variable, t
from proveit.linear_algebra import TensorProd
from proveit.numbers import Add, Interval, Neg, one, zero
from proveit.physics.quantum.QPE import _ket_u, _psi_t_ket, _s
from proveit.physics.quantum.circuits import MultiQubitElem, Output
In [2]:
# build up the expression from sub-expressions
sub_expr1 = Variable("_a", latex_format = r"{_{-}a}")
expr = ExprTuple(ExprRange(sub_expr1, MultiQubitElem(element = Output(state = TensorProd(_psi_t_ket, _ket_u), part = Add(sub_expr1, t)), targets = Interval(one, Add(t, _s))), Add(Neg(t), one), zero))
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(\begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \qout{\lvert \psi_{t} \rangle {\otimes} \lvert u \rangle~\mbox{part}~\left(-t + 1\right) + t~\mbox{on}~\{1~\ldotp \ldotp~t + s\}} 
} \end{array}, \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \qout{\lvert \psi_{t} \rangle {\otimes} \lvert u \rangle~\mbox{part}~\left(-t + 2\right) + t~\mbox{on}~\{1~\ldotp \ldotp~t + s\}} 
} \end{array}, \ldots, \begin{array}{c} \Qcircuit@C=1em @R=.7em{
& & \qout{\lvert \psi_{t} \rangle {\otimes} \lvert u \rangle~\mbox{part}~0 + t~\mbox{on}~\{1~\ldotp \ldotp~t + s\}} 
} \end{array}\right)
In [5]:
stored_expr.style_options()
no style options
In [6]:
# display the expression information
stored_expr.expr_info()
 core typesub-expressionsexpression
0ExprTuple1
1ExprRangelambda_map: 2
start_index: 3
end_index: 4
2Lambdaparameter: 29
body: 6
3Operationoperator: 25
operands: 7
4Literal
5ExprTuple29
6Operationoperator: 8
operands: 9
7ExprTuple10, 20
8Literal
9NamedExprselement: 11
targets: 12
10Operationoperator: 13
operand: 33
11Operationoperator: 14
operands: 15
12Operationoperator: 16
operands: 17
13Literal
14Literal
15NamedExprsstate: 18
part: 19
16Literal
17ExprTuple20, 21
18Operationoperator: 22
operands: 23
19Operationoperator: 25
operands: 24
20Literal
21Operationoperator: 25
operands: 26
22Literal
23ExprTuple27, 28
24ExprTuple29, 33
25Literal
26ExprTuple33, 30
27Operationoperator: 31
operand: 33
28Literal
29Variable
30Literal
31Literal
32ExprTuple33
33Variable