Quantum Computing Developments: IonQ Diamond Breakthrough, Encryption Advances, and Global Shifts
This week's quantum computing update covers significant advancements, including a breakthrough in diamond production by IonQ in collaboration with Element Six, novel approaches to quantum encryption by researchers at the Hebrew University of Jerusalem and Los Alamos National Laboratory, and shifts in quantum research funding in Hong Kong.
IonQ and Element Six Achieve Quantum-Grade Diamond Production Breakthrough
IonQ Inc. (NYSE:IONQ), in partnership with Element Six, a De Beers Group company, has announced a technological breakthrough in the production of high-quality, quantum-grade diamond films. This advancement enables compatibility with standard semiconductor manufacturing techniques, overcoming a critical barrier in building scalable quantum networks. Synthetic diamonds are crucial for quantum memory systems and photonic interconnects, both essential for linking individual quantum computers.
Previously, creating micro- and nano-structured devices from diamonds required specialized, R&D-scale techniques. IonQ's new method allows bonding quantum-grade diamond films onto common substrates like silicon and silicon nitride. This provides foundry compatibility for mass production and allows for heterogeneous integration, combining quantum materials with classical ones on a single chip.
Safer Links with Cheaper Tools: Quantum Encryption Advances
Researchers at the Hebrew University of Jerusalem, in collaboration with Los Alamos National Laboratory, have developed new methods for sending secure keys with more cost-effective tools. Traditional systems rely on ideal single-photon sources, which are expensive and difficult to scale. The new methods, called truncated decoy and heralded purification, demonstrate that effective quantum encryption can be achieved using imperfect light.
The team tested the new methods with quantum dot sources, achieving stronger performance than standard laser-based setups, with a gain of over 3 decibels. They built a room-temperature system tied to the BB84 standard, demonstrating that effective quantum encryption does not require flawless hardware.
Hong Kong Labs Align with Beijing's National Tech Strategy
Research labs in Hong Kong have been reshaped under China's State Key Laboratory program. Underperforming centers have been closed, and new labs are now focused on quantum materials and quantum information. This move ties Hong Kong's universities more closely to Beijing's national technology strategy.
Local funding will provide approximately $20 million per year per lab, in addition to central support. The goal is to focus on national needs, such as quantum communication and computing, marking a shift from academic-driven projects to mission-based programs with specific targets.
Quantum Brush: A New Quantum Tool for Artists
MOTH, a quantum technology firm, has launched Quantum Brush, an open-source art tool. This application allows users to create art with quantum-driven styles based on principles such as entanglement. Tested on hardware from IQM Quantum Computers, the tool provides artists with access to effects shaped by quantum mechanics, expanding the reach of quantum ideas beyond finance and technology.