NCO Kernel Generation With Shared Lookup Table for Scalable Qubits
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Solution Overview
Problem
Existing quantum computing systems face challenges with increasing memory requirements, pre-compute times, and load times for kernel generation as the number of qubits increases, limiting the scalability and efficiency of quantum state determination.
Innovation Solution
A numerically controlled oscillator (NCO) kernel system that generates kernels during run-time using a shared waveform lookup table, reducing memory size requirements and eliminating pre-compute and load times by accessing a shared memory unit for frequency and phase inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pre-computed kernels are stored in memory for each qubit, then kernel generation accuracy is improved, but memory size requirements increase linearly with the number of qubits
Solution Approach 1:
A single shared waveform lookup table serves all qubits in the quantum system, replacing the need for separate memory storage for each qubit. The lookup table is universally accessed by multiple logic blocks, each handling different qubits, thereby reducing total memory requirements while maintaining kernel generation accuracy for all qubits.
Solution Approach 2:
The patent combines the kernel generation functionality into a unified NCO-based system that shares a common waveform lookup table. Instead of having separate pre-computed kernels stored in individual memory locations for each qubit, the system merges these into a single shared resource that all qubits can access during runtime.
2Reliability
If pre-computed kernels are stored in memory, then kernel availability is improved, but pre-compute times and load times increase
Solution Approach 1:
The system transitions from static pre-computed kernels to dynamic runtime kernel generation. The NCO generates kernels on-demand during quantum experiments based on real-time frequency and phase inputs, eliminating the need for offline pre-computation and memory loading operations. This dynamic approach ensures kernel availability exactly when needed without prior computation time.
Solution Approach 2:
The NCO kernel generator is a self-sufficient system that produces kernels directly from frequency and phase inputs without requiring external pre-computation or memory loading. The waveform lookup table contains all necessary waveform data, and the NCO autonomously generates the required kernels during runtime based on the specific qubit parameters, eliminating dependency on external pre-processing systems.
3Speed
If separate memory is allocated for each qubit kernel, then kernel access speed is improved, but hardware complexity increases
Solution Approach 1:
A single shared waveform lookup table serves all qubits, reducing hardware complexity compared to having separate memory structures for each qubit. The lookup table is designed to accommodate all possible waveforms needed across the quantum system, and all logic blocks access this universal resource, simplifying the overall hardware architecture while maintaining fast access speeds.
Solution Approach 2:
The system segments the kernel generation function into modular logic blocks, each handling specific qubits or quantum operations. Each logic block independently accesses the shared waveform lookup table, allowing parallel kernel generation for multiple qubits without requiring separate memory structures. This segmentation maintains access speed while reducing hardware complexity through shared resources.
Data Source
AI summary
Systems and techniques that facilitate qubit differentiation with a numerically controlled oscillator (NCO) kernel are provided. One or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory that can execute the computer executable components stored in memory. The computer executable components can comprise an input component that receives a setpoint having a phase or a frequency for a quantum signal as input. The computer executable components can further comprise an execution component that generates a kernel based on the setpoint for the quantum signal using a logic block in an integrated circuit, wherein the logic block comprises an NCO that generates the kernel using a reading of a waveform lookup table.