Commit 625fa180 authored by Bas Nijholt's avatar Bas Nijholt
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Fix minus sign in gamma_2n

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......@@ -178,7 +178,7 @@
"source": [
"## The Kitaev chain model\n",
"\n",
"Let us now try to write the Hamiltonian $H$, which we have so far written in terms of Majoranas, in terms of regular fermions by substituting $\\gamma_{2n-1}=c^\\dagger_{n}+c_{n}$ and $\\gamma_{2n}=i(c_n^\\dagger-c_n)$. We find that both pairings sketched above are extreme limits of one tight-binding Hamiltonian for a one-dimensional superconducting wire:\n",
"Let us now try to write the Hamiltonian $H$, which we have so far written in terms of Majoranas, in terms of regular fermions by substituting $\\gamma_{2n-1}=c^\\dagger_{n}+c_{n}$ and $\\gamma_{2n}=-i(c_n^\\dagger-c_n)$. We find that both pairings sketched above are extreme limits of one tight-binding Hamiltonian for a one-dimensional superconducting wire:\n",
"\n",
"$$H=-\\mu\\sum_n c_n^\\dagger c_n-t\\sum_n (c_{n+1}^\\dagger c_n+\\textrm{h.c.}) + \\Delta\\sum_n (c_n c_{n+1}+\\textrm{h.c.})\\,.$$\n",
"\n",
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