Update 07-stabilisers.Rmd

source/07-stabilisers.Rmd

@@ -182,7 +182,7 @@ The set of all stabilisers of a given state or given subspace form a group: if $
 This group is called the **stabiliser group** $\mathcal{S}$ of the given state or subspace.
 
 Using this language, we can rephrase the previous example by saying that the stabiliser group of the state $\ket{0}$ is $\{\id,Z\}=\langle Z\rangle$, the stabiliser group of the state $\ket{1}$ is $\{\id,-Z\}=\langle -Z\rangle$, the stabiliser group of the state $\ket{+}$ is $\{\id,X\}=\langle X\rangle$, and so on.
-If we take the tensor product of a two states, with stabiliser groups $\mathcal{A}$ and $\mathcal{B}$ (respectively), then the resulting tensor product state has stabiliser group given by the cartesian product $\mathcal{A}\times\mathcal{B}$.
+If we take the tensor product of two states, with stabiliser groups $\mathcal{A}$ and $\mathcal{B}$ (respectively), then the resulting tensor product state has stabiliser group given by the cartesian product $\mathcal{A}\times\mathcal{B}$.
 For example, the state $\ket{1}\ket{+}$ is stabilised by the group
 $$
   \begin{aligned}