Superconducting Quantum Computing

Chemistry professor Danna Freedman crafts "designer molecules" for quantum information science.

Japan's Fugaku supercomputer has gained an edge following the installation of the Reimei quantum computer.

CMOS-compatible quantum computers can now benefit from error correction

Quantum physicists have developed an algorithm that uses a single qubit to solve a problem that had previously needed thousands of them.

IQM Garnet, a 20-qubit quantum processing unit (QPU) is now available via Amazon Web Services (AWS) — the first quantum computer accessible via AWS' cloud in the European Union. Finnish ...

Quantum computers, computing devices that leverage the principles of quantum mechanics, could outperform classical computing on some complex optimization and processing tasks. In quantum computers, classical units of information (bits), which can either have a value of 1 or 0, are substituted by quantum bits or qubits, which can be in a mixture of both 0 and 1 simultaneously.

A new technique can generate batches of certain entangled states in a quantum processor. This advance could help scientists study the fundamental quantum property of entanglement and enable them to build larger and more complex quantum processors.

California-based quantum circuitry company Rigetti has brought a commercially available quantum computer to the UK. Only the second in the country, it was installed in collaboration ...

One rule has long governed quantum mechanics—but the game might be changing.

Scientists are trying to master the basic computing element known as a qubit to make quantum computers more powerful than electronic machines

The long-term vision for quantum computing is the ability to leverage millions of noise-free qubits to address selected problems that are hard to solve with classical computers. Application fields that may benefit from this technology include materials synthesis, pharmaceutical drug development, and cybersecurity, to name a few.

Over the past decade, scientists have made tremendous progress in generating quantum phenomena in mechanical systems. What seemed impossible only fifteen years ago has now become a reality, as researchers successfully create quantum states in macroscopic mechanical objects.

A team led by Prof. Guo Guangcan from the University of Science and Technology of China (USTC) has made significant progress in the research of multilevel quantum system tunability.

Researchers demonstrate for the first time that using more qubits can lower error rate of quantum calculations.

As buzz grows ever louder over the future of quantum, researchers everywhere are working overtime to discover how best to unlock the promise of super-positioned, entangled, tunneling or otherwise ready-for-primetime quantum particles, the ability of which to occur in two states at once could vastly expand power and efficiency in many applications.

Shor's algorithm has seriously challenged information security based on public key cryptosystems. However, to break the widely used RSA-2048 scheme, one needs millions of physical qubits, which is far beyond current technical capabilities. Here, we report a universal quantum algorithm for integer factorization by combining the classical lattice reduction with a quantum approximate optimization algorithm (QAOA). The…

Milestone is important for the company's road map, less critical for performance.

MIT PhD student Alex Greene studies superconducting quantum computing systems, working to reduce errors that limit the length and complexity of the "programs" the computers can run.

Researchers at QuTech—a collaboration between the Delft University of Technology and TNO—have engineered a record number of six, silicon-based, spin qubits in a fully interoperable array. Importantly, the qubits can be operated with a low error-rate that is achieved with a new chip design, an automated calibration procedure, and new methods for qubit initialization and readout. These advances will contribute to a…

Today, we are excited to launch Borealis, a new quantum processing unit (QPU) on Amazon Braket. Borealis – a special-purpose QPU built by Xanadu – is the first publicly available quantum computer with a claim to quantum computational advantage (sometimes referred to as quantum supremacy or quantum advantage) in a peer-reviewed study. With this launch, […]