Quantum controller with modular and dynamic pulse generation and routing

• US 10,637,449 B1
• Filed: 06/25/2019
• Issued: 04/28/2020
• Est. Priority Date: 11/26/2018
• Status: Active Grant

• Current Assignee: Quantum Machines
• Original Assignee: Quantum Machines
• Inventors: Cohen, Yonatan, Ofek, Nissim, Sivan, Itamar
• Primary Examiner(s): Tan, Vibol
• Application Number:
  US16/451,683
• Time in Patent Office: 308 Days
• CPC Class Codes: G06F 13/36 for access to common bus or bus system
• CPC Class Codes: G06F 15/80 comprising an array of processing units with common control, e.g. single instruction multiple data processors G06F15/82 takes precedence ; for correlation function computation G06F17/15
• CPC Class Codes: G06F 15/82 data or demand driven
• CPC Class Codes: G06N 10/00 Quantum computing, i.e. information processing based on quantum-mechanical phenomena
• CPC Class Codes: H03K 19/195 using superconductive devices
• CPC Class Codes: H03K 3/38 by the use, as active elements, of superconductive devices
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A quantum controller comprises raw pulse generation circuitry, pulse modification circuitry, and output management circuitry. The raw pulse generation circuitry is operable to generate a raw output pulse. The output management circuitry is operable to route one or more output pulses onto a selected one or more signal paths based on to which one or more of a plurality of elements of a quantum processor the one or more output pulses are to be sent. The pulse modification circuitry is operable to select pulse modification settings to use for processing of the raw output pulse, wherein the selection is based on which of the signal paths are selected and/or to which elements of a quantum processor the pulses are to be sent. The pulse modification circuitry is operable to process the raw pulse using the selected pulse modification settings to generate the output pulses.

Claims

1. A system comprising:

input manager circuitry, raw pulse generation circuitry, pulse modification circuitry, and output manager circuitry, wherein;

the input manager circuitry is operable to;

receive a feedback signal from one of a plurality of controlled circuits;

determine, during runtime, to which one or more inputs of a plurality of inputs of the raw pulse generation circuitry; and

route the feedback signal to the determined one or more inputs;

the raw pulse generation circuitry is operable to;

generate a raw pulse; and

output the raw pulse to the pulse modification circuitry;

the pulse modification circuitry is operable to;

generate a plurality of pulse modification settings;

select one of the plurality of pulse modification settings;

use the selected one of the plurality of pulse modification settings to manipulate the raw pulse, resulting in a manipulated raw pulse; and

output the manipulated raw pulse to the output manager circuitry; and

the output manager circuitry is operable to;

determine, during runtime, to which one of the plurality of controlled circuits to route the manipulated raw pulse; and

route the manipulated raw pulse to the one of the controlled circuits.

2. The system of claim 1, wherein the determination of the one or more inputs is based on calculations performed by the raw pulse generation circuitry during runtime.

3. The system of claim 1, wherein the selection of the one of the pulse modification settings is based on calculations performed by the raw pulse generation circuitry during runtime.

4. The system of claim 1, wherein the determination of to which one of the plurality of controlled circuits to route the manipulated raw pulse is based on calculations performed by the raw pulse generation circuitry during runtime.

5. The system of claim 1, wherein the manipulation of the raw pulse is a manipulation of phase, frequency, and/or amplitude of the raw pulse.

6. The system of claim 1, wherein each of the pulse modification settings is customized for a corresponding one of the controlled circuits.

7. The system of claim 1, wherein the selection of the one of the plurality of pulse modification settings is based on the determined controlled circuit to which the manipulated raw pulse is to be routed.

8. The system of claim 1, wherein each of the plurality of controlled circuits is a quantum element.

9. The system of claim 1, wherein the raw pulse generation circuitry is operable to generate the raw pulse based on characteristics of the feedback signal.

10. The system of claim 1, wherein the selection of the one of the plurality of pulse modification settings is based on characteristics of the feedback signal.

11. A method comprising:

in a system comprising input manager circuitry, raw pulse generation circuitry, pulse modification circuitry, and output manager circuitry;

receiving, by the input manager circuitry, a feedback signal from one of a plurality of controlled circuits;

determining, by the input manager circuitry during runtime, to which one or more inputs of a plurality of inputs of the raw pulse generation circuitry to route the feedback signal;

routing, by the input manager circuitry, the feedback signal to the one or more inputs;

generating, by the raw pulse generation circuitry, a raw pulse, and outputting the raw pulse to the pulse modification circuitry;

generating, by the pulse modification circuitry, a plurality of pulse modification settings;

selecting, by the pulse modification circuitry, one of the plurality of pulse modification settings;

manipulating, by the pulse modification circuitry, the raw pulse using the selected one of the plurality of pulse modification settings;

outputting, by the pulse modification circuitry, the manipulated raw pulse to the output manager circuitry;

determining, by the output manager circuitry during runtime, to which one of the plurality of controlled circuits to route the manipulated raw pulse; and

routing, by the output manager circuitry, the manipulated raw pulse to the one of the plurality of controlled circuits.

12. The method of claim 11, wherein the determining the one or more inputs is based on calculations performed by pulse generation circuitry during runtime.

13. The method of claim 11, wherein the selecting the one of the pulse modification settings is based on calculations performed by the raw pulse generation circuitry during runtime.

14. The method of claim 11, wherein the determining to which one of the plurality of controlled circuits to route the manipulated raw pulse is based on calculations performed by the raw pulse generation circuitry during runtime.

15. The method of claim 11, wherein the manipulating the raw pulse comprises manipulating phase, frequency, and/or amplitude of the raw pulse.

16. The method of claim 11, wherein each of the pulse modification settings is customized for a corresponding one of the controlled circuits.

17. The method of claim 11, wherein the selecting the one of the plurality of pulse modification settings is based on the determined controlled circuit to which the manipulated raw pulse is to be routed.

18. The method of claim 11, wherein each of the controlled circuits is a quantum element.

19. The method of claim 11, comprising generating, by the raw pulse generation circuitry, the raw pulse based on characteristics of the feedback signal.

20. The method of claim 11, wherein the selecting the one of the plurality of pulse modification settings is based on characteristics of the feedback signal.