Samples#

qpdk.samples.filled_resonator.filled_quarter_wave_resonator#

qpdk.samples.filled_resonator.filled_quarter_wave_resonator()[source]#

Returns a quarter wave resonator filled with magnetic vortex trapping rectangles.

This sample demonstrates how to use the fill_magnetic_vortices helper function to add small rectangles that trap magnetic vortices in superconducting quantum circuits.

Returns:

A quarter wave resonator with fill rectangles for vortex trapping.

Return type:

Component

import qpdk.samples.filled_resonator
from qpdk import PDK

PDK.activate()
c = qpdk.samples.filled_resonator.filled_quarter_wave_resonator().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-1.png

qpdk.samples.filled_test_chip.filled_flipmon_test_chip#

qpdk.samples.filled_test_chip.filled_flipmon_test_chip()#

Returns a qubit test chip filled with magnetic vortex trapping rectangles.

Rouhly corresponds to the sample in [TSKivijarvi+25].

import qpdk.samples.filled_test_chip
from qpdk import PDK

PDK.activate()
c = qpdk.samples.filled_test_chip.filled_flipmon_test_chip().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-2.png

qpdk.samples.filled_test_chip.filled_qubit_test_chip#

qpdk.samples.filled_test_chip.filled_qubit_test_chip(yaml_path=PosixPath('/home/runner/work/quantum-rf-pdk/quantum-rf-pdk/qpdk/samples/qubit_test_chip.pic.yml'))[source]#

Returns a qubit test chip filled with magnetic vortex trapping rectangles.

Rouhly corresponds to the sample in [TSKivijarvi+25].

Parameters:

yaml_path (str | Path)

import qpdk.samples.filled_test_chip
from qpdk import PDK

PDK.activate()
c = qpdk.samples.filled_test_chip.filled_qubit_test_chip().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-3.png

qpdk.samples.resonator_test_chip.filled_resonator_test_chip#

qpdk.samples.resonator_test_chip.filled_resonator_test_chip()[source]#

Creates a resonator test chip filled with magnetic vortex trapping holes.

This version includes the complete resonator test chip layout with additional ground plane holes to trap magnetic vortices, improving the performance of superconducting quantum circuits. Includes chip edge components with extra y-padding to keep resonators away from the chip edges.

Returns:

Test chip with ground plane fill patterns and chip edges.

Return type:

Component

import qpdk.samples.resonator_test_chip
from qpdk import PDK

PDK.activate()
c = qpdk.samples.resonator_test_chip.filled_resonator_test_chip().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-4.png

qpdk.samples.resonator_test_chip.resonator_test_chip#

qpdk.samples.resonator_test_chip.resonator_test_chip(probeline_length=9000.0, probeline_separation=1000.0, resonator_length=4000.0, coupling_length=200.0, coupling_gap=16.0)[source]#

Creates a resonator test chip with two probelines and 16 resonators.

The chip features two horizontal probelines running west to east, each with launchers on both ends. Eight quarter-wave resonators are coupled to each probeline, with systematically varied cross-section parameters for characterization studies.

Parameters:

  • probeline_length (float) – Length of each probeline in µm.

  • probeline_separation (float) – Vertical separation between probelines in µm.

  • resonator_length (float) – Length of each resonator in µm.

  • coupling_length (float) – Length of coupling region between resonator and probeline in µm.

  • coupling_gap (float) – Gap between resonator and probeline for coupling in µm.

Returns:

A gdsfactory component containing the complete test chip layout.

Return type:

Component

import qpdk.samples.resonator_test_chip
from qpdk import PDK

PDK.activate()
c = qpdk.samples.resonator_test_chip.resonator_test_chip(probeline_length=9000, probeline_separation=1000, resonator_length=4000, coupling_length=200, coupling_gap=16).copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-5.png

qpdk.samples.sample0.sample0_hello_world#

qpdk.samples.sample0.sample0_hello_world()[source]#

Returns a component with ‘Hello world’ text and a rectangle.

Return type:

Component

import qpdk.samples.sample0
from qpdk import PDK

PDK.activate()
c = qpdk.samples.sample0.sample0_hello_world().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-6.png

qpdk.samples.sample1.sample1_connect#

qpdk.samples.sample1.sample1_connect()[source]#

Returns a component with connected waveguides.

Return type:

Component

import qpdk.samples.sample1
from qpdk import PDK

PDK.activate()
c = qpdk.samples.sample1.sample1_connect().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-7.png

qpdk.samples.sample2.sample2_remove_layers#

qpdk.samples.sample2.sample2_remove_layers()[source]#

Returns a component with ‘Hello world’ text and a rectangle.

Return type:

Component

import qpdk.samples.sample2
from qpdk import PDK

PDK.activate()
c = qpdk.samples.sample2.sample2_remove_layers().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-8.png

qpdk.samples.sample3.sample3_grid#

qpdk.samples.sample3.sample3_grid()[source]#

Returns a component with a grid of text elements.

import qpdk.samples.sample3
from qpdk import PDK

PDK.activate()
c = qpdk.samples.sample3.sample3_grid().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-9.png

qpdk.samples.sample4.sample4_pack#

qpdk.samples.sample4.sample4_pack()[source]#

Returns a component with a packed set of ellipses.

import qpdk.samples.sample4
from qpdk import PDK

PDK.activate()
c = qpdk.samples.sample4.sample4_pack().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-10.png

qpdk.samples.sample5.sample5_path#

qpdk.samples.sample5.sample5_path()[source]#

Returns a component with a path made of different segments.

import qpdk.samples.sample5
from qpdk import PDK

PDK.activate()
c = qpdk.samples.sample5.sample5_path().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-11.png

qpdk.samples.sample6.sample6_cross_section#

qpdk.samples.sample6.sample6_cross_section()[source]#

Returns a component with a path made of different segments.

import qpdk.samples.sample6
from qpdk import PDK

PDK.activate()
c = qpdk.samples.sample6.sample6_cross_section().copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-12.png

qpdk.samples.simulate_resonator.resonator_simulation#

qpdk.samples.simulate_resonator.resonator_simulation(coupling_gap=12.0)[source]#

Create a resonator simulation layout with launchers and CPW routes.

Parameters:

coupling_gap (float)

Return type:

Component

import qpdk.samples.simulate_resonator
from qpdk import PDK

PDK.activate()
c = qpdk.samples.simulate_resonator.resonator_simulation(coupling_gap=12).copy()
c.draw_ports()
c.plot()

(Source code, png, hires.png, pdf)

_images/samples-13.png

References#

[TSKivijarvi+25] (1,2)

Mikko Tuokkola, Yoshiki Sunada, Heidi Kivijärvi, Jonatan Albanese, Leif Grönberg, Jukka-Pekka Kaikkonen, Visa Vesterinen, Joonas Govenius, and Mikko Möttönen. Methods to achieve near-millisecond energy relaxation and dephasing times for a superconducting transmon qubit. Nature Communications, 16(1):5421, July 2025. URL: https://www.nature.com/articles/s41467-025-61126-0 (visited on 2025-08-29), doi:10.1038/s41467-025-61126-0.