{
 "cells": [
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   "cell_type": "code",
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   "source": [
    "# prerequisites: KrylovKit, TensorOperations, LinearAlgebra, CUDA#tb/cutensor (for GPU mode)\n",
    "\n",
    "include(\"CPU.jl\") # using CPU mode\n",
    "T = Float32\n",
    "\n",
    "V_test(r2::T)::T =\n",
    "    -4 * exp(-r2 / 4)\n",
    "\n",
    "d = 3\n",
    "n = 3\n",
    "N = 6\n",
    "L::T = 12.0\n",
    "mu::T = 0.5\n",
    "n_imag = 1\n",
    "\n",
    "H = HOperator{T}(V_test, 3, 3, N, L, 0.5f0, 1)\n",
    "@time evals, evecs, info = eig(H, 5)\n",
    "print(info.numops, \" operations : \")\n",
    "println(evals)"
   ]
  }
 ],
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