Granted Patent B2

US 12,273,111 · App. 18/420,330 · Granted Apr 8, 2025

Inventors: Ramon Szmuk (Tel Aviv, IL); Lior Ella (Tel Aviv, IL); Yonatan Cohen (Tel Aviv, IL); Itamar Sivan (Tel Aviv, IL); Nissim Ofek (Tel Aviv, IL)

Assignee: Q.M Technologies Ltd.

H03K3/38G06N10/40G06N10/80H03L7/099

Abstract

Claims (77)

1. A system comprising:

circuitry operable to:

generate a quantum control pulse;

upconvert the quantum control pulse according to a plurality of fixed-frequency signals;

upconvert a quantum readout pulse using one or more of the plurality of fixed-frequency signals; and

convey the upconverted quantum readout pulse to a quantum element readout circuit.

2. The system of claim 1 , wherein the circuitry is operable to:

generate a baseband pulse; and

upconvert the baseband pulse to an intermediate frequency to generate the quantum control pulse.

3. The system of claim 1 , wherein the circuitry is operable to:

convey the upconverted quantum control pulses to one or more qubits.

4. The system of claim 1 , wherein the circuitry is operable to:

route one or more of the plurality of fixed-frequency signals.

5. The system of claim 4 , wherein the routing is controllable via one or more digital control signals.

6. The system of claim 1 , wherein the circuitry is operable to:

downconvert a return pulse from the quantum element readout circuit.

7. The system of claim 1 , wherein:

the circuitry comprises a crystal oscillator and a signal processor;

the crystal oscillator is configured to generate a fixed-frequency intermediary signal; and

the signal processor is configured to process the fixed-frequency intermediary signal to generate a plurality of fixed-frequency signals.

8. The system of claim 7 , wherein one or more of the plurality of fixed-frequency signals are generated from two or more outputs of a plurality of resonators.

9. The system of claim 1 , wherein a frequency of each of the plurality of fixed-frequency signals is an integer multiple of a frequency of a fixed-frequency intermediary signal.

10. A method comprising:

generating a quantum control pulse; and

upconverting the quantum control pulse according to a plurality of fixed-frequency signals;

upconverting a quantum readout pulse using one or more of the plurality of fixed-frequency signals; and

conveying the upconverted quantum readout pulse to a quantum element readout circuit.

11. The method of claim 10 , wherein the method comprises:

generating a baseband pulse; and

upconverting the baseband pulse to an intermediate frequency to generate the quantum control pulse.

12. The method of claim 10 , wherein the method comprises:

conveying the upconverted quantum control pulses to one or more qubits.

13. The method of claim 10 , wherein the method comprises:

routing one or more of the plurality of fixed-frequency signals.

14. The method of claim 13 , wherein the method comprises:

controlling the routing via one or more digital control signals.

15. The method of claim 10 , wherein the method comprises:

downconverting a return pulse from the quantum element readout circuit.

16. The method of claim 10 , wherein the method comprises:

generating, via a crystal oscillator, a fixed-frequency intermediary signal; and

processing, via a signal processor, the fixed-frequency signal to generate the plurality of fixed-frequency signals.

17. The method of claim 16 , wherein the method comprises:

generating one or more of the plurality of fixed-frequency signals from a plurality of resonators.

18. The method of claim 10 , wherein a frequency of each of the plurality of fixed-frequency signals is an integer multiple of a frequency of a fixed-frequency intermediary signal.

19. A system comprising:

circuitry operable to:

generate a quantum control pulse; and

upconvert the quantum control pulse according to a plurality of fixed-frequency signals, wherein:

the circuitry comprises a crystal oscillator and a signal processor,

the crystal oscillator is configured to generate a fixed-frequency intermediary signal,

the signal processor is configured to process the fixed-frequency intermediary signal to generate a plurality of fixed-frequency signals, and

one or more of the plurality of fixed-frequency signals are generated from two or more outputs of a plurality of resonators.

20. The system of claim 19 , wherein the circuitry is operable to:

generate a baseband pulse; and

upconvert the baseband pulse to an intermediate frequency to generate the quantum control pulse.

21. The system of claim 19 , wherein the circuitry is operable to:

convey the upconverted quantum control pulses to one or more qubits.

22. The system of claim 19 , wherein the circuitry is operable to:

route one or more of the plurality of fixed-frequency signals.

23. The system of claim 22 , wherein the routing is controllable via one or more digital control signals.

24. The system of claim 19 , wherein a frequency of each of the plurality of fixed-frequency signals is an integer multiple of a frequency of a fixed-frequency intermediary signal.

25. A method comprising:

generating a quantum control pulse;

upconverting the quantum control pulse according to a plurality of fixed-frequency signals;

generating, via a crystal oscillator, a fixed-frequency intermediary signal;

processing, via a signal processor, the fixed-frequency signal to generate the plurality of fixed-frequency signals; and

generating one or more of the plurality of fixed-frequency signals from a plurality of resonators.

26. The method of claim 25 , wherein the method comprises:

generating a baseband pulse; and

upconverting the baseband pulse to an intermediate frequency to generate the quantum control pulse.

27. The method of claim 25 , wherein the method comprises:

conveying the upconverted quantum control pulses to one or more qubits.

28. The method of claim 25 , wherein the method comprises:

routing one or more of the plurality of fixed-frequency signals.

29. The method of claim 28 , wherein the method comprises:

controlling the routing via one or more digital control signals.

30. The method of claim 25 , wherein a frequency of each of the plurality of fixed-frequency signals is an integer multiple of a frequency of a fixed-frequency intermediary signal.

Assignments (2)

Continuity (4)

References Cited (193)