Xanadu has achieved a world-first in the quantum computing industry by successfully building a universal photonic quantum computer consisting of four modular and independent server racks that are photonically interconnected and networked together. This 12 qubit machine, known as Aurora, consists of 35 photonic chips and a combined 13 km of fiber optics all operating at room temperature.

Alice & Bob, a global leader in the race for fault-tolerant quantum computing, today announces the immediate availability on Google Cloud Marketplace of a new single cat-qubit chip in the ”Boson” series. The company’s signature technology, the cat qubit, is regarded as one of the most promising platforms for the realization of fault-tolerant quantum computers. The launch of Boson 4 marks the first time a cat qubit has become available to the public.

In a major step toward scalable quantum computing, Atlantic Quantum has been named as a Stage A performer in the Defense Advanced Research Projects Agency (DARPA) Quantum Benchmarking Initiative (QBI). This prestigious program aims to rigorously verify and validate quantum computing approaches for utility-scale operation by 2033.

Alice & Bob, a leader in fault-tolerant quantum computing, today announces its selection as a performer in the U.S. Defense Advanced Research Projects Agency’s (DARPA) Quantum Benchmarking Initiative (QBI). Under this program, Alice & Bob will contribute to QBIs mission of verifying and validating whether fault-tolerant quantum computers can achieve utility-scale operation—where computational value exceeds costs—by 2033.

Classiq Technologies,a leading quantum computing software company, announced today that it has successfully achieved significant compression of quantum circuits in implementing quantum algorithms for Monte Carlo simulations as part of a project conducted by Sumitomo Corporation. Sumitomo used Classiq's quantum platform and quantum algorithms provided by Mizuho–DL Financial Technology Co., Ltd.

Xanadu, a leading photonic quantum computing company, and Corning Incorporated, the global leader in fibre, cable and connectivity, will collaborate to develop customized fibre and fibre-array solutions to enable low-loss networking of photonic quantum computing chips. This collaboration will bring together Xanadu's world-leading expertise in developing ultra-low-loss photonic chip components using customized fabrication and design techniques, and Corning's future-ready innovations in low-loss optical fibre and high-precision fibre arrays. The combination of expertise will help enable the development of fault-tolerant, universal photonic quantum computers at scale.

Classiq Technologies has reported that its quantum circuit compression tools achieved up to 95% reduction in circuit depth for quantum Monte Carlo simulations in a financial modeling study with Sumitomo Corporation and Mizuho–DL Financial Technology. The project evaluated how Classiq’s platform could support more resource-efficient implementations of Monte Carlo methods used in credit risk analysis.

Iceberg Quantum today announced its launch, a $2 million pre-seed funding round, and a partnership with PsiQuantum. The company is developing fault-tolerant quantum computing architectures based on LDPC codes, with the goal of accelerating the path to useful quantum computing using significantly less hardware.

QC Design has achieved a GPU-acceleration breakthrough in Plaquette, its state-of-the-art software for designing and optimizing fault tolerance architectures. By collaborating with NVIDIA to integrate the NVIDIA cuQuantum SDK, Plaquette now leverages the cuTensorNet library to perform high-performance, full-state simulations of fault-tolerant quantum circuits. This advancement dramatically enhances fault-tolerant design, enabling simulations at unprecedented scale and performance.

Microsoft’s topological qubit is constructed of indium arsenide and aluminum, which becomes a superconductor at very low temperatures. It is the result of nearly two decades’ work by a Microsoft team led by Chetan Nayak, Microsoft technical fellow and professor at the University of California at Santa Barbara. In this edited conversation, Nayak, who got his start in physics as a Harvard College undergraduate in the late 1980s and early 1990s, spoke with the Gazette about the advance and about his experience treading the sometimes-difficult path of discovery.