Dynamic Quantum Circuits Using Quantum Random Number Control

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Solution Overview

Problem

Existing quantum computing systems lack the ability to efficiently execute dynamic quantum circuits, leading to the need for multiple quantum circuits to account for various measurement bases, which is computationally inefficient and time-consuming.

Innovation Solution

Implementing quantum random numbers to generate dynamic quantum circuits that selectively apply quantum operations based on random number outcomes, reducing the need for multiple circuits by using conditional operations and state preparation, thereby optimizing execution time and efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple quantum circuits are used to account for various measurement bases, then measurement coverage is improved, but device complexity and execution time increase

Engineering Contradiction:

Improvemeasurement coverageVSAvoidnumber of quantum circuits

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements a single quantum circuit that can perform multiple measurement basis operations by incorporating reversible basis change gates (such as Hadamard gates) that allow the same circuit to measure in different bases (X, Y, Z) depending on the gate configuration. This eliminates the need for separate circuits for each measurement basis, achieving multi-functionality within a single circuit design.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs dynamic circuit configuration where the basis change gates are selectively applied based on the required measurement basis. The circuit transitions from static to dynamic operation by conditionally applying reversible gates before measurement, allowing adaptability without requiring multiple fixed circuit designs. This dynamic approach reduces circuit complexity while maintaining measurement coverage.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If multiple quantum circuits are used to account for various measurement bases, then measurement coverage is improved, but execution time increases

Engineering Contradiction:

Improvemeasurement coverageVSAvoidexecution time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

By designing a universal quantum circuit that can perform measurements in multiple bases through reversible basis change gates, the patent eliminates the need to execute multiple separate circuits. This multi-functional approach reduces total execution time while maintaining comprehensive measurement coverage across different bases.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent merges multiple measurement basis operations into a single quantum circuit by incorporating basis change gates that can be selectively applied. This consolidation combines what would traditionally require multiple separate circuits into one unified circuit, reducing the total number of circuit executions and thereby reducing overall execution time.

Inventive Principle:

Principle #5Merging (Combining)

3Productivity

If quantum random numbers are generated and used for dynamic circuit selection, then execution efficiency is improved, but computational resources increase

Engineering Contradiction:

Improveexecution efficiencyVSAvoidcomputational resources

Core Design Contradiction:

ProductivityVSQuantity of substance

Solution Approach 1:

The patent employs quantum random number generation within the quantum circuit itself, where the circuit generates its own random numbers using quantum operations on qubits. This self-service approach eliminates the need for external classical random number generation, reducing the computational resources required while maintaining execution efficiency through quantum-based randomness.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces classical mechanical random number generation with quantum mechanical operations. By using quantum superposition and measurement to generate random numbers, the system leverages quantum phenomena rather than classical computational methods, improving execution efficiency while managing computational resources through quantum-specific operations.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20260057268A1Quantum random numbers with dynamic quantum circuits

Publication Date: 2026.02.26 INTERNATIONAL BUSINESS MACHINE CORPORATION

AI summary

One or more systems, devices, computer program products and/or computer-implemented methods of use provided herein relate to implementing quantum random numbers with dynamic quantum circuits. For example, a system can comprise a memory and a processor that can execute computer executable components stored in the memory, wherein the computer executable components can comprise a quantum circuit generation component that can generate a dynamic quantum circuit, wherein generating the dynamic quantum circuit can comprise applying, via a quantum random number component, a first set of quantum operations to one or more qubits, wherein the first set of quantum operations can be executable to generate one or more quantum random numbers. The generating can further comprise applying, via a quantum random measurement component, a second set of quantum operations to the one or more qubits, wherein the second set of quantum operations can be conditional upon the one or more quantum random numbers.