Theo Zheng’s Post

Practical Quantum Devices Now Closer to Reality – Scientists Unveil Room Temperature Photonic Chips. A quantum emitter centrally placed within a hybrid metal-dielectric bullseye antenna, designed for highly directional photon emission. The antenna’s unique structure allows photons to be efficiently coupled directly into an optical fiber, showcasing a pivotal enhancement in quantum photonics technology with implications for secure communication and advanced quantum computing applications - https://lnkd.in/dK84v8GB #photonics #quantumtechnologies

Visible lasers have proved very useful for quantum applications. Asger Sellerup Jensen, our Senior Market Development Manager and Head of Quantum says: “For quantum computers, both neutral atom and ion-trap quantum computers use a number of visible lasers to establish, maintain, and control the qubits that form the base for quantum computation." Learn more about how visible light sources can enable new quantum applications in this article in Photonics Spectra: https://lnkd.in/duUk4emP #SolutionsForInnovators #QuantumScience #FiberLasers Photonics Media

New application opportunities for quantum devices and quantum science could be made possible through new advancements in high-performance visible laser manufacturing. Read what industry leaders are saying about these advancements - https://ow.ly/gPTc50SqTgK #QuantumScience #LaserManufacturing | Photonics Media, Photonics Spectra, NKT Photonics

Current Research and Development of Photonic Qubits Integrated Photonics: Developing integrated photonic circuits that incorporate all necessary components (sources, gates, detectors) on a single chip to enhance scalability and reduce losses. Measurement-Based Quantum Computing: Using cluster states (large entangled states of many photons) to perform quantum computations through a series of adaptive measurements. Quantum Repeaters: Developing quantum repeaters to extend the range of quantum communication networks by addressing photon loss and maintaining entanglement over long distances. Error Correction: Researching quantum error correction methods specifically suited to photonic systems to mitigate errors due to photon loss and imperfect operations. Leading Efforts and Milestones of Photonic Qubits PsiQuantum: Aiming to build a large-scale, fault-tolerant quantum computer using photonic qubits. They are working on developing integrated photonic chips with millions of components. Xanadu: Specializes in photonic quantum computing and has developed a photonic quantum cloud platform for running quantum algorithms. University Research: Many academic institutions are conducting pioneering research in photonic quantum computing, focusing on various aspects such as integrated photonics, quantum communication, and novel photonic qubit implementations. Photonic qubits offer a unique set of advantages, especially for quantum communication and networking. While there are significant challenges, ongoing research and technological advances are steadily overcoming these hurdles, making photonic quantum computing a viable and promising approach. #PhotonicQubits #PhotonicQubits #qunautumcomputing #quantumapplications #quantumphysics

Combining trapped atoms and photonics for new quantum devices

Breakthrough in Quantum Communication with Cold-Atom Circuits Achieved Researchers at Purdue University have made a breakthrough in developing cold-atom integrated nanophotonic circuits, a technology that could revolutionize quantum computing and photonics. The team, led by Associate Professor Chen-Lung Hung, has successfully demonstrated the efficient cooling and trapping of atoms on a circuit, paving the way for new research directions. This achievement builds upon previous breakthroughs, including realizing the “tractor beam” method in 2023 and highly efficient optical fiber coupling to a photonic chip in 2022. https://lnkd.in/dA4Q6-3P

A new study from Universidade Estadual de Campinas, ETH Zürich, and Delft University of Technology heralds a new era in quantum networking. Leveraging nanometric optomechanical cavities, researchers are bringing us closer to the development of sophisticated quantum networks, crucial for the future of computing and communications. Learn more about how this research is shaping the landscape of quantum technology: https://lnkd.in/ejMeaq6e #QuantumNetworks #ResearchCollaboration #TechnologyAdvancement"

Combining Trapped Atoms And Photonics For New Quantum Devices ⚛️ University of Chicago Pritzker School of Molecular Engineering researchers have discovered how to combine trapped atom arrays and photonic devices to yield advanced quantum systems. https://lnkd.in/e4MtMy5k #quantum #photonic #atoms #quantumcomputing

"Quantum information systems offer faster, more powerful computing methods than standard computers to help solve many of the world's toughest problems. Yet fulfilling this ultimate promise will require bigger and more interconnected quantum computers than scientists have yet built. Scaling quantum systems up to larger sizes, and connecting multiple systems, has proved challenging. Now, researchers at the University of Chicago's Pritzker School of Molecular Engineering (PME) have discovered how to combine two powerful technologies—trapped atom arrays and photonic devices—to yield advanced systems for quantum computing, simulation and networking. The new combination will allow the construction of large quantum systems which can be easily scaled up, by leveraging photonics to interconnect individual atom arrays." #quantumcomputing #photonics

"In a significant leap forward for quantum technology, researchers have achieved a milestone in harnessing the frequency dimension within integrated photonics. This breakthrough not only promises advancements in quantum computing, but also lays the groundwork for ultra-secure communications networks. Integrated photonics, the manipulation of light within tiny circuits on silicon chips, has long held promise for quantum applications due to its scalability and compatibility with existing telecommunications infrastructure." #photonics #optical #quantumcomputing