Note

This page was generated from tut/2-From-components-to-chip/2.02-How-to-copy-a-QComponent.ipynb.

2.02 How to copy a QComponent

Start by importing QisKit Metal:

import qiskit_metal as metal
from qiskit_metal import designs, draw
from qiskit_metal import MetalGUI, Dict  # , open_docs

Then let’s fire up the GUI:

design = designs.DesignPlanar()
gui = MetalGUI(design)

Now we’ll put one transmon at the origin:

# Let's start by putting a transmon at the origin:
from qiskit_metal.qlibrary.qubits.transmon_pocket import TransmonPocket

design.overwrite_enabled = True
q1 = TransmonPocket(design, "Q1")
gui.rebuild()
gui.autoscale()

First, we’ll copy the component and then manually modify the coordinates to be at (1,0) instead of (0,0):

# Now let's copy the transmon at the origin and put it at position (0,1):
q1_copy = design.copy_qcomponent(q1, "Q1_copy")
q1_copy.options["pos_x"] = "1.0mm"
gui.rebuild()
gui.autoscale()

Now, we’ll copy the original component and in the same step we’ll move the copy to (-1,0) by passing a dictionary to the “copy_qcomponent” command:

# Now let's copy the transmon at the origin and put it at position (0,-1):
q1_anothercopy = design.copy_qcomponent(q1, "Q1_another_copy", dict(pos_x="-1.0mm"))
gui.rebuild()
gui.autoscale()

We can copy multiple components at once using the “copy_multiple_qcomponents” command. Here’s an example that copies the three components we’ve just created (Q1 and the two copies: Q1_copy and Q1_another_copy) and moves them up by 2.0mm each:

# Now let's copy all three components at the same time, moving them up by +2mm in the y-direction:
newcopies = design.copy_multiple_qcomponents(
    [q1, q1_copy, q1_anothercopy],
    ["Q3", "Q4", "Q5"],
    [dict(pos_y="1.0mm"), dict(pos_y="2.0mm"), dict(pos_y="3.0mm")],
)
gui.rebuild()
gui.autoscale()

Note that we can also copy multiple QComponents without passing dictionaries. In this case, the copied QComponents will sit on top of of the original QComponents in the layout:

# Example of copying without giving any dictionary values; qcomponents will sit on top of the originals!
newcopies2 = design.copy_multiple_qcomponents(
    [q1, q1_copy, q1_anothercopy], ["Q6", "Q7", "Q8"]
)
gui.rebuild()
gui.autoscale()

Note also that we can copy multiple QComponents but only give a dictionary to one of them. The other two dictionaries still need to exist but can be empty:

# Copy the three original components but only give a dictionary for the first one; other two dictionaries still need to exist but can be empty:
newcopies3 = design.copy_multiple_qcomponents(
    [q1, q1_copy, q1_anothercopy],
    ["Q9", "Q10", "Q11"],
    [dict(pos_y="-1.0mm"), dict(), dict()],
)
gui.rebuild()
gui.autoscale()

gui.screenshot()

For more information, review the Introduction to Quantum Computing and Quantum Hardware lectures below

Superconducting Qubits I: Quantizing a Harmonic Oscillator, Josephson Junctions Part 1	Lecture Video	Lecture Notes	Lab
Superconducting Qubits I: Quantizing a Harmonic Oscillator, Josephson Junctions Part 2	Lecture Video	Lecture Notes	Lab
Superconducting Qubits I: Quantizing a Harmonic Oscillator, Josephson Junctions Part 3	Lecture Video	Lecture Notes	Lab
Superconducting Qubits II: Circuit Quantum Electrodynamics, Readout and Calibration Methods Part 1	Lecture Video	Lecture Notes	Lab
Superconducting Qubits II: Circuit Quantum Electrodynamics, Readout and Calibration Methods Part 2	Lecture Video	Lecture Notes	Lab
Superconducting Qubits II: Circuit Quantum Electrodynamics, Readout and Calibration Methods Part 3	Lecture Video	Lecture Notes	Lab