The Daily Qubit

✈️ Infleqtion's Tiqker takes flight. Plus, NVIDIA models global collaboration and France is getting quantum computers & chips in bulk.

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Enjoy today’s breakdown of news, research, events & jobs within quantum.

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IN TODAY’S ISSUE:

  • Infleqtion’s quantum technologies have successfully been tested in quantum-based aerospace navigation systems in the UK resulting in the most un-spoofable and un-jammable tech available for commerical flights today

  • A variational quantum computing-based framework that reduces energy consumption and carbon emissions in AI data centers

  • Machine learning approach to quantum gate set tomography, reduces computational demands through a transformer neural network

  • Plus, Alice & Bob tease an upcoming world record, IQM to build a quantum computer & chip fabrication unit in France, NVIDIA spreads CUDA-Q to the globe, and D-Wave renews partnership with USC.

 😵 Mondays, amirite?

BRIEF BYTES

NEWS FOR THOSE IN A HURRY

TOP HEADLINES IN NEWS & RESEARCH

NEWS

Tags: AEROSPACE APPLICATION

BRIEF BYTE:  The UK is officially at the forefront of aerospace technology innovation after a successful round of testing was completed for advanced quantum-based navigation systems on commercial flights. This quantum technology cannot be jammed or spoofed and is a demonstration of added navigation resilience and accuracy.

WHY: Backed by nearly £8 million ($100.5 million) in government funding, this project aligns with the UK's National Quantum Strategy. By 2030, its goal is to equip aircraft with quantum navigation systems and set a new standard for navigation technology. Today’s technology is expected to be included in a quantum inertial navigation system to change the way we do PNT — positioning, navigation, and timing.

Learn more about Tiqker below:

RESEARCH

Tags: ENERGY APPLICATION

OVERVIEW OF VARIATIONAL QUANTUM CIRCUIT LEARNING-ENABLED ROBUST OPTIMIZATION FOR AI DATA CENTER ENERGY CONTROL AND DECARBONIZATION

BRIEF BYTE: This study introduces a variational quantum computing-based robust optimization (VQC-RO) framework to manage energy in AI data centers by combining quantum and classical optimization to tackle energy consumption and carbon footprint challenges. The framework successfully reduces energy use by 9.8% and carbon emissions by 12.5% in AI data centers.

WHY: AI data centers have led to increased global electricity consumption and carbon emissions. Due to the growing demand for AI applications, energy management has become critical. The pitfalls of computational complexity and the non-linearity of energy management tasks can be addressed by integrating variational quantum circuits with classical optimization.

HOW: A digital twin of the AI data center was created to accurately simulate and visualize energy usage and optimize operations. The system's operations were modeled as a Markov decision process to capture the dynamics and interactions of different data center components. The variational quantum circuit robust optimization framework combined quantum and classical methods to optimize energy management. The framework's performance was tested through computational experiments across multiple AI data center locations in the U.S. by measuring reductions in power consumption and carbon emissions.

RESULTS: Overall, the VQC-RO framework demonstrated a reduction in energy consumption (up to 12.5%) and carbon emissions (9.8%) compared to traditional methods across locations and conditions. This approach not only increases the sustainability and efficiency of AI data centers but also demonstrates the practical utility of combined classical and quantum methods in creating solutions for real-world problems

Source: Akshay Ajagekar and Fengqi You. Variational Quantum Circuit Learning-Enabled Robust Optimization for AI Data Center Energy Control and Decarbonization. Advances in Applied Energy. (2024). https://doi.org/10.1016/j.adapen.2024.100179

PREPRINT

Tags: MACHINE LEARNING

OVERVIEW OF TRANSFORMER MODELS FOR QUANTUM GATE SET TOMOGRAPHY

BRIEF BYTE: This study proposes Ml4Qgst, a new approach to quantum gate set tomography that integrates machine learning with a transformer neural network to reduce computational complexity.

WHY: Quantum gate set tomography is used to characterize the operational capabilities and limitations of quantum processors. Traditional quantum tomography methods are computationally expensive due to the complex, nonlinear nature of quantum systems. Machine learning, particularly deep learning models like the transformer, can manage the computational complexity of QGST by handling the nonlinear, multi-model regression tasks involved.

HOW: The ML4Qgst model uses a transformer neural network to address the challenges of QGST and verify that the resulting quantum processes are completely positive and trace-preserving (CPTP). Techniques such as data grouping and curriculum learning are used to improve the model’s performance and efficiency in learning complex QGST tasks.

RESULTS: The ML4Qgst model performed QGST with high accuracy, matching while sometimes surpassing more traditional methods such as pyGSTi. The model effectively estimated error parameters and produced corresponding process matrices.

Source: King Yiu Yu and Aritra Sarkar and Ryoichi Ishihara and Sebastian Feld. Transformer Models for Quantum Gate Set Tomography. arXiv quant-ph. (2024). https://doi.org/10.48550/arXiv.2405.02097

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