{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# ParallelConstantChannelPulseTemplate\n", "One reoccuring problem is to add a constant channel to an already existing possibly complex pulse. The setting in this example requires us to put a trigger pulse before the example pulse written in [03FreeInductionDecayExample](03FreeInductionDecayExample.ipynb). Unfortunately, the trigger pulse has to be played on a seperate marker channel that is not included in the example pulse. Therefore, we will add this channel to the pulse with the constant value 0.\n", "\n", "Let us start with loading the experiment and defining the trigger pulse" ] }, { "cell_type": "code", "execution_count": 1, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "Defined channels of loaded pulse: {'RFY', 'RFX'}\n", "Defined channels of trigger pulse: {'RFY', 'Marker', 'RFX'}\n" ] } ], "source": [ "from qupulse.pulses import TablePT\n", "from qupulse.serialization import FilesystemBackend, PulseStorage\n", "\n", "pulse_storage = PulseStorage(FilesystemBackend('./serialized_pulses'))\n", "free_induction_decay = pulse_storage['free_induction_decay']\n", "print('Defined channels of loaded pulse:', free_induction_decay.defined_channels)\n", "\n", "trig_pulse = TablePT({'RFX': [(0, 0), ('t_trig', 0)],\n", " 'RFY': [(0, 0), ('t_trig', 0)],\n", " 'Marker': [(0, 1), ('t_trig', 1)]})\n", "print('Defined channels of trigger pulse:', trig_pulse.defined_channels)" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "If we now try to concatenate the pulses we get an error as they differ in their defined channels." ] }, { "cell_type": "code", "execution_count": 2, "metadata": {}, "outputs": [ { "name": "stdout", "output_type": "stream", "text": [ "ValueError('The subtemplates are defined for different channels')\n" ] } ], "source": [ "try:\n", " experiment = trig_pulse @ free_induction_decay\n", "except ValueError as err:\n", " print(repr(err))" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "We can now add an extra channel with a constant value to the `free_induction_decay` pulse. This allows us to concatenate the pulses." ] }, { "cell_type": "code", "execution_count": 3, "metadata": {}, "outputs": [], "source": [ "from qupulse.pulses.multi_channel_pulse_template import ParallelConstantChannelPulseTemplate\n", "extended_free_induction_decay = ParallelConstantChannelPulseTemplate(free_induction_decay, {'Marker': 0})\n", "\n", "experiment = trig_pulse @ extended_free_induction_decay" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ "Read example parameters from file and plot complete pulse" ] }, { "cell_type": "code", "execution_count": 4, "metadata": {}, "outputs": [ { "data": { "application/javascript": [ "/* Put everything inside the global mpl namespace */\n", "window.mpl = {};\n", "\n", "\n", "mpl.get_websocket_type = function() {\n", " if (typeof(WebSocket) !== 'undefined') {\n", " return WebSocket;\n", " } else if (typeof(MozWebSocket) !== 'undefined') {\n", " return MozWebSocket;\n", " } else {\n", " alert('Your browser does not have WebSocket support.' +\n", " 'Please try Chrome, Safari or Firefox ≥ 6. ' +\n", " 'Firefox 4 and 5 are also supported but you ' +\n", " 'have to enable WebSockets in about:config.');\n", " };\n", "}\n", "\n", "mpl.figure = function(figure_id, websocket, ondownload, parent_element) {\n", " this.id = figure_id;\n", "\n", " this.ws = websocket;\n", "\n", " this.supports_binary = (this.ws.binaryType != undefined);\n", "\n", " if (!this.supports_binary) {\n", " var warnings = document.getElementById(\"mpl-warnings\");\n", " if (warnings) {\n", " warnings.style.display = 'block';\n", " warnings.textContent = (\n", " \"This browser does not support binary websocket messages. \" +\n", " \"Performance may be slow.\");\n", " }\n", " }\n", "\n", " this.imageObj = new Image();\n", "\n", " this.context = undefined;\n", " this.message = undefined;\n", " this.canvas = undefined;\n", " this.rubberband_canvas = undefined;\n", " this.rubberband_context = undefined;\n", " this.format_dropdown = undefined;\n", "\n", " this.image_mode = 'full';\n", "\n", " this.root = $('
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