Minor edits
This commit is contained in:
parent
579e05e2c3
commit
2dafcb026c
@ -2,7 +2,7 @@
|
||||
|
||||
|
||||
\definition{}
|
||||
Just as before, we'll represent multi-quibit states as linear combinations of multi-qubit basis states. \par
|
||||
Just as before, we'll represent multi-qubit states as linear combinations of multi-qubit basis states. \par
|
||||
For example, a two-qubit state $\ket{ab}$ is the four-dimensional unit vector
|
||||
\begin{equation}
|
||||
\begin{bmatrix}
|
||||
@ -33,7 +33,7 @@ we get one of the four basis states with the following probabilities:
|
||||
\item $\mathcal{P}(\ket{10}) = c^2$
|
||||
\item $\mathcal{P}(\ket{11}) = d^2$
|
||||
\end{itemize}
|
||||
Of course, the sum of all the above probabilities is $1$.
|
||||
As before, the sum of all the above probabilities is $1$.
|
||||
|
||||
|
||||
\problem{}
|
||||
|
@ -26,11 +26,11 @@ map, we can write it as follows:
|
||||
|
||||
\definition{}
|
||||
Before we discussing multi-qubit quantum gates, we need to review to classical logic. \par
|
||||
Of course, a classical logic gate is a linear map from $\mathbb{B}^m$ to $\mathbb{B}^n$
|
||||
Of course, a classical logic gate is a linear map from $\{0,1\}^m$ to $\{0,1\}^n$
|
||||
|
||||
|
||||
\problem{}<notgatex>
|
||||
The \texttt{not} gate is a map from $\mathbb{B}$ to $\mathbb{B}$ defined by the following table: \par
|
||||
The \texttt{not} gate is a map defined by the following table: \par
|
||||
|
||||
\begin{itemize}
|
||||
\item $X\ket{0} = \ket{1}$
|
||||
|
@ -10,7 +10,7 @@ satisfies $GG^\text{T} = I$. \par
|
||||
This implies the following: \par
|
||||
|
||||
\begin{itemize}
|
||||
\item $G$ is square \par
|
||||
\item $G$ is square. In other words, it has as many rows as it has columns. \par
|
||||
\note{
|
||||
If we think of $G$ as a map, this means that $G$ has as many inputs as it has outputs. \\
|
||||
This is to be expected: we stated earlier that quantum gates do not destroy or create qubits.
|
||||
@ -29,7 +29,7 @@ We can restate the above definition as follows: \par
|
||||
A quantum gate is an invertible map from $\mathbb{U}^n$ to $\mathbb{U}^n$.
|
||||
|
||||
|
||||
\definition{}<qgateislinear>
|
||||
\generic{Remark:}
|
||||
Let $G$ be a quantum gate. \par
|
||||
Since quantum gates are, by definition, \textit{linear} maps,
|
||||
the following holds: \par
|
||||
|
@ -53,6 +53,7 @@ The $Z$ gate is defined as follows: \par
|
||||
\problem{}
|
||||
Suppose that Alice and Bob are each in possession of one qubit. \par
|
||||
These two qubits are entangled, and have the compound state $\ket{\Phi^+}$. \par
|
||||
\note[Note]{We could say that they each have \say{half} of $\ket{\Phi^+}$.}
|
||||
How can Alice send a two-bit classical state
|
||||
(i.e, one of the four values \texttt{00}, \texttt{01}, \texttt{10}, \texttt{11}) \par
|
||||
to Bob by only sending one qubit?
|
||||
|
@ -24,7 +24,7 @@
|
||||
\input{tikzset}
|
||||
|
||||
\uptitlel{Advanced 2}
|
||||
\uptitler{Winter 2022}
|
||||
\uptitler{Winter 2024}
|
||||
\title{Intro to Quantum Computing I}
|
||||
\subtitle{Prepared by \githref{Mark} on \today{}}
|
||||
|
||||
|
@ -16,7 +16,7 @@
|
||||
% use the [nosolutions] flag to hide solutions,
|
||||
% use the [solutions] flag to show solutions.
|
||||
\documentclass[
|
||||
solutions,
|
||||
nosolutions,
|
||||
singlenumbering,
|
||||
shortwarning
|
||||
]{../../../resources/ormc_handout}
|
||||
@ -28,7 +28,7 @@
|
||||
\def\bra#1{\left\langle#1\right|}
|
||||
|
||||
\uptitlel{Advanced 2}
|
||||
\uptitler{Winter 2022}
|
||||
\uptitler{Winter 2024}
|
||||
\title{Intro to Quantum Computing II}
|
||||
\subtitle{Prepared by \githref{Mark} on \today{}}
|
||||
|
||||
|
Loading…
x
Reference in New Issue
Block a user