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US 2026/0288194 A1Published application
Microwave pulse generator, quantum computer, and microwave pulse generation method
AssigneeHitachi, Ltd.
InventorsTakayasu NORIMATSU, Yusuke Wachi
Life of this patent
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Abstract
Both high-speed ON/OFF control of an output circuit and maximization of the number of quantum bit operations within an operation time are achieved in a microwave pulse generator. A plurality of divided microwave pulses are output based on divided amplitude signals and clock signals, and a single microwave pulse obtained by adding the divided microwave pulses is output.
Claims14
A microwave pulse generator comprising:
- a plurality of modulators;
- an adder adding output signals of the plurality of modulators;
- an oscillator generating a plurality of clock signals with different frequencies;
- a clock switch that switches between the plurality of clock signals based on a clock switching signal and assigns different clock signals to the plurality of modulators at different timings;
- and
- a pulse signal switch that divides a pulse waveform setting signal into a plurality of amplitude signals based on a pulse switching signal and assigns the divided amplitude signals to the plurality of modulators at different timings, respectively,
- wherein the plurality of modulators output a plurality of divided microwave pulses based on the divided amplitude signals and the clock signals, and
- the adder adds the divided microwave pulses output from the plurality of modulators and outputs a single microwave pulse.
5 more elements
A quantum computer comprising:
- a quantum bit array storing information;
- and
- a microwave pulse generator operating the quantum bit array,
- wherein the microwave pulse generator includes
- a plurality of modulators,
- an adder adding output signals of the plurality of modulators,
- an oscillator generating a plurality of clock signals with different frequencies,
- a clock switch that switches between the plurality of clock signals based on a clock switching signal and assigns different clock signals to the plurality of modulators at different timings, and
- a pulse signal switch that divides a pulse waveform setting signal into a plurality of amplitude signals based on a pulse switching signal and assigns the divided amplitude signals to the plurality of modulators at different timings, respectively,
- the plurality of modulators output a plurality of divided microwave pulses based on the divided amplitude signals and the clock signals, and
- the adder adds the divided microwave pulses output from the plurality of modulators and outputs a single microwave pulse.
8 more elements
A microwave pulse generation method for generating a microwave pulse using a plurality of modulators, comprising:
- a first step of generating a plurality of clock signals with different frequencies;
- a second step of switching between the plurality of clock signals based on a clock switching signal and assigning different clock signals to the plurality of modulators at different timings;
- a third step of dividing a pulse waveform setting signal into a plurality of amplitude signals based on a pulse switching signal and assigning the divided amplitude signals to the plurality of modulators at different timings, respectively;
- a fourth step of outputting a plurality of divided microwave pulses based on the divided amplitude signals and the clock signals;
- and
- a fifth step of adding the divided microwave pulses output from the plurality of modulators and outputting a single microwave pulse.
3 more elements
Dependencies are inferred from the claim text.