The world's first diamond-powered portable quantum computer works at room temperature and can even be plugged into a regular wall outlet

The system connects directly to a standard alternating-current power outlet Sulfur co-implantation gave engineers precise control over individual diamond qubits Single-qubit fidelity reportedly reached 99.98% German startup Saxon Q has launched the world's first portable diamond-powered quantum comp

<![CDATA[ <article> <ul><li><strong>The system connects directly to a standard alternating-current power outlet</strong></li><li><strong>Sulfur co-implantation gave engineers precise control over individual diamond qubits</strong></li><li><strong>Single-qubit fidelity reportedly reached 99.98%</strong></li></ul><p>German startup Saxon Q has launched the world's first portable diamond-powered quantum computer operating at room temperature without requiring complex cryogenic cooling equipment.</p><p>The system fits inside a standard server rack, connects directly to a conventional alternating-current power outlet, and supports configurations reaching 128 qubits.</p><p>The company says larger 512-qubit systems will become available next year, while its long-term roadmap aims to exceed 10,000 qubits after 2030.</p><h2 id="synthetic-diamonds-replace-cryogenic-cooling-with-a-different-quantum-approach">Synthetic diamonds replace cryogenic cooling with a different quantum approach</h2><p>The system relies on nitrogen-vacancy defects created inside synthetic diamonds, where nitrogen atoms occupy positions beside empty spaces within the crystal structure to function as quantum bits.</p><p>Scientists manipulate these qubits using lasers and microwave pulses, allowing them to represent quantum states extending beyond conventional binary computing methods.</p><p>Although nitrogen-vacancy technology has existed for years, producing stable systems beyond 10 qubits has remained difficult because creating reliable defects at larger scales proved technically challenging.</p><p>Saxon Q says its breakthrough came from introducing sulfur alongside nitrogen during manufacturing, allowing engineers to improve stability while gaining greater control over individual qubits.</p><p>“That's the key technology point. Because the sulfur lifts the chemical potential to a point that it's negatively charged,” said Marius Grundmann, professor of experimental physics at Leipzig University and co-founder of Saxon Q.</p><p>“The sulfur supplies the electron; the sulfur also makes the vacancy attached to the nitrogen with a very high yield.”</p><p>According to the company, this manufacturing process enabled qubits to achieve 99.92% fidelity before error correction, representing fewer than one error for every 1,000 operations.</p><p>However, it later updated its data, saying subsequent measurements increased single-qubit fidelity to 99.98%, although those figures have not yet received independent verification.</p><p>The hardware is currently available in rack-mounted systems supporting up to 128 qubits, while 512-qubit configurations are expected next year and expansion beyond 10,000 qubits remains the long-term objective after 2030.</p><h2 id="practical-deployment-offers-advantages-while-scalability-questions-remain-unresolved">Practical deployment offers advantages while scalability questions remain unresolved</h2><p>Unlike many quantum systems that require cryogenic refrigeration and extensive infrastructure, Saxon Q says its hardware can operate directly within conventional computing environments without dedicated cooling facilities.</p><p>“We have a fully functioning quantum computer… We have a quantum computer that can execute quantum code that you can reach via the network, and it is a multiuser, multitasking, multicore system,” Grundmann added.</p><p>The company believes local deployment could reduce dependence on cloud-based quantum services for applications including robotics and autonomous driving, where communication delays may become unacceptable.</p><p>Researchers still caution that comparing nitrogen-vacancy systems directly with superconducting quantum computers remains difficult because both technologies emphasize different engineering approaches and operating characteristics.</p><p>Existing studies generally indicate superconducting systems deliver faster processing, although the balance between processing speed, cloud latency, and practical deployment remains uncertain across different workloads.</p><p>Another unresolved challenge involves increasing chip density, since current devices support only eight or 16 qubits per chip.</p><p>Future applications may require hundreds of thousands or even millions of interconnected qubits operating within significantly larger quantum arrays.</p><p>Via <a href="https://www.livescience.com/technology/quantum/scientists-built-a-room-temperature-quantum-computer-with-diamond-based-qubits" target="_blank" rel="nofollow">Live Science</a></p><figure class="van-image-figure inline-layout" data-bordeaux-image-check ><div class='image-full-width-wrapper'><div class='image-widthsetter' style="max-width:676px;"><p class="vanilla-image-block" style="padding-top:31.51%;"><img id="diM9tpwF2Lz85R8q85CT78" name="tr-g_news" alt="Google logo on a black background next to text reading 'Click to follow TechRadar'" src="https://cdn.mos.cms.futurecdn.net/diM9tpwF2Lz85R8q85CT78.jpg" mos="" align="middle" fullscreen="" width="676" height="213" attribution="" endorsement="" class="inline"></p></div></div></figure> </article> ]]>