Collaborating Authors

Google launches TensorFlow Quantum, a machine learning framework for training quantum models


Google today announced the launch of TensorFlow Quantum, bringing together machine learning and quantum computing initiatives at the company. The framework can construct quantum datasets, prototype hybrid quantum and classic machine learning models, support quantum circuit simulators, and train discriminative and generative quantum models. Last fall, Google said it achieved quantum supremacy with the debut of a newly engineered solution. The release of TensorFlow Quantum follows the launch of Azure Quantum and progress by companies like Honeywell. Creating quantum models is made possible with standard Keras functions and by providing quantum circuit simulators and quantum computing primitives compatible with existing TensorFlow APIs, according to a Google AI blog.

Quantum walkers caught in a loop


A quantum walk is the quantum mechanical analog of a classical random walk, describing the propagation of quantum walkers (photons) through an optical circuit. Because quantum walks generate large-scale quantum superposed states, they can be used for simulating many-body quantum systems and the development of algorithms for quantum computation. Nejadsattari et al. describe the photonic simulation with cyclic quantum systems. With the ability to simulate a variety of different quantum operations and gates, they claim that the versatility of the approach should allow the study of more complex many-body systems.

Best-yet quantum simulator with 53 qubits could really be useful

New Scientist

That might not sound like much, but in the quantum computing arms race, several groups are edging past one another as they aim to eventually make a universal quantum computer. A group of researchers at the Joint Quantum Institute has created a quantum simulator using 53 quantum bits, or qubits. Earlier this month, IBM announced a 50-qubit prototype, though its capabilities are unclear. With this 53-qubit device, the researchers have done scientific simulations that don't seem to be possible

IBM will soon launch a 53-qubit quantum computer – TechCrunch


IBM continues to push its quantum computing efforts forward and today announced that it will soon make a 53-qubit quantum computer available to clients of its IBM Q Network. The new system, which is scheduled to go online in the middle of next month, will be the largest universal quantum computer available for external use yet. The new machine will be part of IBM's new Quantum Computation Center in New York State, which the company also announced today. The new center, which is essentially a data center for IBM's quantum machines, will also feature five 20-qubit machines, but that number will grow to 14 within the next month. IBM promises a 95% service availability for its quantum machines.

Intel's quest to build the world's first true quantum computer

New Scientist

Intel is taking a slow and steady approach to quantum computing. Competitors like Google may be racing to achieve so-called quantum supremacy, in which a quantum computer outperforms an ordinary one. But Intel's James Clarke has bigger ideas. He leads the firm's quantum computing research team, and says it is looking past near-term goals in order to be the first to make a device with a million qubits, or quantum bits – enough to have a real impact on the world.