New Quantum Research Points Toward Practical Computing and Security
Three recent research efforts highlight how the quantum field is moving from laboratory experiments to scalable, commercial-ready technologies.
Quantum computing has long been celebrated for its transformative potential, yet its practical implementation has faced persistent challenges, from the stability of qubits to the looming threat of quantum decryption. Recent breakthroughs suggest that the gap between theory and deployment is starting to narrow.
Researchers at the University of Wisconsin-Madison have developed a chip-scale neutral atom platform designed for manufacturability, while U.K.-based EnSilica is tackling post-quantum security with a compact IP accelerator optimized for next-generation SoCs. Meanwhile, a collaboration led by Northwestern University has successfully built the first monolithic electronic-photonic quantum chip in a commercial foundry, a crucial step toward mass production.
Together, these research studies represent meaningful strides toward a quantum ecosystem that is both technologically viable and commercially scalable.
Trapped-Atom Qubits Transition to an Industry-Ready Platform
A research team from the University of Wisconsin-Madison has advanced neutral atom qubit technology into a manufacturable platform, aiming to bridge the gap between laboratory prototypes and scalable quantum products. Neutral atom systems have long been admired for their long coherence times and high-fidelity operations, but their reliance on bulky optical setups has been a barrier to commercialization.
Ph.D. student Chengyu Fang (left), and Professors Mikhail Kats (middle) and Mark Saffman (right) developed a new method of trapping neutral atoms using a microfabricated optical mask that splits laser light. Image used courtesy of Joel Hallberg/University of Wisconsin-Madison
The Wisconsin group has developed a chip-scale atom trap array that integrates the necessary optical components onto a planar substrate. This design uses photonic waveguides and microfabricated lenses to position and manipulate rubidium atoms with high precision. By consolidating complex optical paths into a compact system, the new device significantly reduces the footprint and complexity of neutral atom qubit arrays.
The technology was co-developed with quantum hardware company Infleqtion, which plans to build modular qubit units based on this design for cloud-accessible quantum services. This approach directly addresses the scalability challenge. Trapped-atom platforms can now be assembled in a reproducible, manufacturable manner rather than as custom lab experiments.
In terms of applications, the team sees potential in hybrid quantum-classical computing and quantum networking, where neutral atom qubits’ long coherence can benefit distributed architectures. The next steps involve coupling multiple atom arrays to create multi-qubit registers and refining the photonic addressing system to improve gate fidelities at scale.
EnSilica’s Compact PQC Accelerator Targets Post-Quantum Security
The race to protect data from quantum decryption attacks is driving the need for post-quantum cryptography (PQC) hardware. EnSilica, a U.K.-based mixed-signal ASIC specialist, has introduced eSi-CRYSTALS, a single IP block that consolidates three critical PQC algorithms—Dilithium (FIPS-204), Kyber (FIPS-203), and SHA-3 (FIPS-202)—into one accelerator. Traditionally, these algorithms would require separate hardware cores, consuming more silicon area and power.
EnSilica hopes to shrink post-quantum cryptography (PQC) silicon area with its three-in-one IP block. Image used courtesy of EnSilica
EnSilica’s unified approach reduces area and cost by sharing hardware resources between the key encapsulation (Kyber), digital signature (Dilithium), and hashing (SHA-3) operations. The IP block is optimized for both mature and advanced process nodes, making it suitable for 5 nm and below networking ASICs, where area efficiency is crucial. CEO Ian Lankshear noted that the technology is designed to counter “harvest now, decrypt later” threats, ensuring future-proof, hardware-level protection.
The methodology is hardware-focused, with each cryptographic primitive implemented with low-latency arithmetic units and a true random number generator (TRNG) that complies with NIST standards. This makes it possible to integrate PQC functions directly into secure SoCs for IoT devices, data centers, and automotive electronics. These are examples of sectors that must adopt quantum-resistant security before quantum computers mature.
Northwestern’s Photonic-Electronic Quantum Chip
While quantum photonics promises faster and more stable qubits, integrating photonic components with classical control electronics on a single chip has been a longstanding challenge. Now, a collaboration between Northwestern University, Boston University, and UC Berkeley has demonstrated the first monolithic electronic-photonic quantum chip fabricated in a commercial foundry, marking a leap toward scalable quantum processors.
The team built a 1-mm x 1-mm silicon chip that combines microring resonators with integrated electronics for real-time stabilization. On-chip photocurrent sensors monitor the quantum light source, while microheaters adjust for temperature drift and fabrication imperfections. This feedback loop allows the chip to self-correct without the bulky, lab-scale stabilization equipment typically needed in photonic experiments.
A close-up image of the chip. Because the chip uses built-in feedback to stabilize itself, it behaves predictably despite temperature changes and fabrication variations. Image used courtesy of Northwestern University
By using a standard CMOS-compatible platform, the researchers proved that quantum photonic systems can be manufactured in the same high-volume foundries that produce classical semiconductors. This compatibility is critical for scaling quantum hardware from prototypes to commercial products.
Applications include secure quantum communication, sensing, and eventually quantum information processing, where stable, high-rate photon generation is essential. The team’s next steps involve integrating larger arrays of microrings and multiplexers to expand the number of photonic qubits on a single chip. As Northwestern’s Prem Kumar stated, this achievement marks “a key step toward scalable quantum photonic systems” that can be mass-produced like conventional electronics.