numpy-array-qobj.ipynb

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   "cells": [
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "import numpy"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 1
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "import qutip"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 2
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "q1, q2 = qutip.sigmax(), qutip.sigmay()"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 3
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "numpy.array([q1, q2])"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "ename": "TypeError",
       "evalue": "a float is required",
       "output_type": "pyerr",
       "traceback": [
        "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m\n\u001b[0;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
        "\u001b[0;32m<ipython-input-4-3facc10958fd>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mnumpy\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0marray\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0mq1\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mq2\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
        "\u001b[0;31mTypeError\u001b[0m: a float is required"
       ]
      }
     ],
     "prompt_number": 4
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "numpy.array([q1, q2], dtype=object)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 5,
       "text": [
        "array([ Quantum object: dims = [[2], [2]], shape = [2, 2], type = oper, isherm = True\n",
        "Qobj data =\n",
        "[[ 0.  1.]\n",
        " [ 1.  0.]],\n",
        "       Quantum object: dims = [[2], [2]], shape = [2, 2], type = oper, isherm = True\n",
        "Qobj data =\n",
        "[[ 0.+0.j  0.-1.j]\n",
        " [ 0.+1.j  0.+0.j]]], dtype=object)"
       ]
      }
     ],
     "prompt_number": 5
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "type(q1)"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 6,
       "text": [
        "qutip.qobj.Qobj"
       ]
      }
     ],
     "prompt_number": 6
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "class C:\n",
      "    def __init__(self):\n",
      "        pass"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 7
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "c1, c2 = C(), C()"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [],
     "prompt_number": 8
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "numpy.array([c1, c2])"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "metadata": {},
       "output_type": "pyout",
       "prompt_number": 9,
       "text": [
        "array([<__main__.C object at 0x10d344320>,\n",
        "       <__main__.C object at 0x10d344358>], dtype=object)"
       ]
      }
     ],
     "prompt_number": 9
    },
    {
     "cell_type": "code",
     "collapsed": false,
     "input": [
      "%reload_ext version_information\n",
      "\n",
      "%version_information numpy, qutip"
     ],
     "language": "python",
     "metadata": {},
     "outputs": [
      {
       "html": [
        "<table><tr><th>Software</th><th>Version</th></tr><tr><td>Python</td><td>3.4.1 (default, May 21 2014, 01:39:38) [GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)]</td></tr><tr><td>IPython</td><td>2.1.0</td></tr><tr><td>OS</td><td>posix [darwin]</td></tr><tr><td>numpy</td><td>1.9.0</td></tr><tr><td>qutip</td><td>3.1.0.dev-6504b15</td></tr><tr><td colspan='2'>Thu Sep 11 23:38:58 2014 JST</td></tr></table>"
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        "{ \"Software versions\" : [{ \"module\" : \"Python\", \"version\" : \"3.4.1 (default, May 21 2014, 01:39:38) [GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)]\" }, { \"module\" : \"IPython\", \"version\" : \"2.1.0\" }, { \"module\" : \"OS\", \"version\" : \"posix [darwin]\" }, { \"module\" : \"numpy\", \"version\" : \"1.9.0\" }, { \"module\" : \"qutip\", \"version\" : \"3.1.0.dev-6504b15\" } ] }"
       ],
       "latex": [
        "\\begin{tabular}{|l|l|}\\hline\n",
        "{\\bf Software} & {\\bf Version} \\\\ \\hline\\hline\n",
        "Python & 3.4.1 (default, May 21 2014, 01:39:38) [GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)] \\\\ \\hline\n",
        "IPython & 2.1.0 \\\\ \\hline\n",
        "OS & posix [darwin] \\\\ \\hline\n",
        "numpy & 1.9.0 \\\\ \\hline\n",
        "qutip & 3.1.0.dev-6504b15 \\\\ \\hline\n",
        "\\hline \\multicolumn{2}{|l|}{Thu Sep 11 23:38:58 2014 JST} \\\\ \\hline\n",
        "\\end{tabular}\n"
       ],
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       "output_type": "pyout",
       "prompt_number": 10,
       "text": [
        "Software versions\n",
        "Python 3.4.1 (default, May 21 2014, 01:39:38) [GCC 4.2.1 Compatible Apple LLVM 5.1 (clang-503.0.40)]\n",
        "IPython 2.1.0\n",
        "OS posix [darwin]\n",
        "numpy 1.9.0\n",
        "qutip 3.1.0.dev-6504b15\n",
        "\n",
        "Thu Sep 11 23:38:58 2014 JST"
       ]
      }
     ],
     "prompt_number": 10
    }
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}