Microwave combiner and distributer for quantum signals using frequency-division multiplexing

Patent metadata

Field	Value
Publication number	US-10567100-B2
Application number	US-201816153870-A
Country	US
Kind code	B2
Filing date	Oct 8, 2018
Priority date	Sep 26, 2016
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

A technique relates to a superconducting microwave combiner. A first filter through a last filter connects to a first input through a last input, respectively. The first filter through the last filter each has a first passband through a last passband, respectively, such that the first passband through the last passband are each different. A common output is connected to the first input through the last input via the first filter through the last filter.

First claim

What is claimed is:

1. A system comprising:
a superconducting microwave combiner comprising individual ports and a common output port, the individual ports being associated with different bands of frequencies; and
quantum systems respectively coupled to the individual ports.

2. The system of claim 1 , wherein the individual ports are configured to receive input of a plurality of quantum signals from the quantum systems.

3. The system of claim 1 , wherein the superconducting microwave combiner is operable to output a multiplexed quantum signal to the common output port.

4. The system of claim 1 , wherein the superconducting microwave combiner is operable to receive a plurality of quantum signals from the quantum systems, multiplex the plurality of quantum signals, and output a multiplexed quantum signal via the common output port.

5. The system of claim 1 , further comprising an amplifier coupled to the common output port.

6. The system of claim 5 , wherein the amplifier comprises a frequency range operable to amplify a plurality of quantum signals from the quantum systems, the plurality of quantum signals having a different frequency.

7. The system of claim 1 , wherein each of the individual ports is associated with a predefined passband.

8. A system comprising:
a superconducting microwave combiner comprising individual ports and a common output port; and
quantum systems respectively coupled to the individual ports, wherein the superconducting microwave combiner comprises a plurality of filters.

9. The system of claim 8 , wherein each of the plurality of filters is coupled to one of the individual ports.

10. The system of claim 8 , wherein each of the plurality of filters is operable to communicate with one of the quantum systems.

11. The system of claim 8 , wherein the plurality of filters isolate the individual ports, thereby avoiding signal leakage between the individual ports.

12. The system of claim 8 , wherein the plurality of filters are each passive.

13. A method of configuring a system, the method comprising:
providing a superconducting microwave combiner comprising individual ports and a common output port; and
coupling quantum systems respectively to the individual ports, wherein the superconducting microwave combiner comprises a plurality of filters.

14. The method of claim 13 , wherein the individual ports are configured to receive input of a plurality of quantum signals from the quantum systems.

15. The method of claim 13 , wherein the superconducting microwave combiner is operable to output a multiplexed quantum signal to the common output port.

16. The method of claim 13 , wherein the superconducting microwave combiner is operable to receive a plurality of quantum signals from the quantum systems, multiplex the plurality of quantum signals, and output a multiplexed quantum signal via the common output port.

17. The method of claim 13 , wherein an amplifier is coupled to the common output port.

18. The method of claim 17 , wherein the amplifier comprises a frequency range operable to amplify a plurality of quantum signals from the quantum systems, the plurality of quantum signals having a different frequency.

19. The method of claim 13 , wherein each of the individual ports is associated with a predefined passband.

Assignees

• IBM

Inventors

• Abdo Baleegh

Classifications

• H03H7/46 Primary

  Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source · CPC title

• H01P1/213 Primary

  combining or separating two or more different frequencies (H01P1/215 takes precedence) · CPC title

• H01P5/12

  Coupling devices having more than two ports (H01P5/04 takes precedence) · CPC title

• H04J1/08 Primary

  Arrangements for combining channels {(branching filters H01P1/213, H03H7/46)} · CPC title

• G06N10/00

  Quantum computing, i.e. information processing based on quantum-mechanical phenomena · CPC title