US 2024/0259002 A1 · QUBIT CLOCK SIGNAL GENERATION

Abstract

Example embodiments relate to generation of qubit clock signals. A superconductive phase detector may receive a reference frequency signal across a boundary of a cryogenic environment. A superconductive oscillator may be configured to generate a pulse clock signal based on an output of a low-pass filter electrically coupled to the output of the superconductive phase detector. A frequency divider may divide a frequency of the pulse clock signal to generate a feedback signal for the superconductive phase detector, which may generate its output based on a comparison of a phase of the reference frequency signal and a phase of the feedback signal. A pulse generator may generate a qubit drive pulse sequence based on the pulse clock signal. Apparatuses and methods are disclosed.

Claims29

Dependent claims

An apparatus, comprising:

a superconductive phase detector configured to receive a reference frequency signal across a boundary of a cryogenic environment;
a low-pass filter electrically coupled to an output of the superconductive phase detector;
a superconductive oscillator electrically coupled to an output of the low-pass filter, wherein the superconductive oscillator is configured to generate a pulse clock signal based on the output of the low-pass filter;
a frequency divider configured to divide a frequency of the pulse clock signal to generate a feedback signal, wherein the superconductive phase detector is configured to generate its output based on a comparison of a phase of the reference frequency signal and a phase of the feedback signal;
and
a pulse generator configured to generate a qubit drive pulse sequence based on the pulse clock signal.

3 more elements

Dependencies are inferred from the claim text.

Qubit clock signal generation

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Qubit clock signal generation

Life of this patent

Abstract

Claims29