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Quantum Physics Oct 4, 2024

Quantum communication: Using microwaves to efficiently control diamond qubits

In a first for Germany, researchers at the Karlsruhe Institute of Technology (KIT) have shown how tin vacancies in diamonds can be precisely controlled using microwaves. These vacancies have special optical and magnetic properties ...

Superconductivity Oct 4, 2024

Direct measurement of a subtle current phase relation shows potential for more stable superconducting qubits

In recent years, quantum physicists and engineers have made significant strides toward the development of highly performing quantum computing systems. Realizing a quantum advantage over classical computing systems and enabling ...

Quantum Physics Oct 3, 2024

Physicists achieve strong coupling of Andreev qubits via microwave resonator

Physicists from the University of Basel have succeeded in coupling two Andreev qubits coherently over a macroscopic distance for the first time. They achieved this with the help of microwave photons generated in a narrow ...

Nanophysics Oct 2, 2024

Researchers create orientation-independent magnetic field-sensing nanotube spin qubits

Purdue University researchers have developed patent-pending one-dimensional boron nitride nanotubes (BNNTs) containing spin qubits, or spin defects. The BNNTs are more sensitive in detecting off-axis magnetic fields at high ...

Quantum Physics Oct 1, 2024

First-ever teleportation of logical qubit using fault-tolerant methods

A team of engineers and physicists at quantum computing company Quantinuum has conducted the first-ever teleportation of a logical qubit using fault-tolerant methods. In their paper published in the journal Science, the group ...

Optics & Photonics Sep 23, 2024

Controlling light while measuring trapped ion qubits

Quantum information is fragile and often difficult to protect during experiments. Protecting qubits from accidental measurements is essential for controlled quantum operations, especially during state-destroying measurements ...

Quantum Physics Sep 18, 2024

Different qubit architecture could enable easier manufacturing of quantum computer building blocks

Scientists from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have shown that a type of qubit whose architecture is more amenable to mass production can perform comparably to qubits currently dominating ...

Quantum Physics Sep 11, 2024

Google Quantum AI demonstrates a quantum memory system that greatly reduces error rates

A team of computer scientists at Google Quantum AI has demonstrated a type of quantum memory for a quantum computer that produces far fewer errors than others. The group has published a paper on the arXiv preprint server ...

Optics & Photonics Sep 9, 2024

Quantum error correction technology outperforms world's leading quantum computing company, researchers claim

Solving the problem of error is essential for the practical application of quantum computing technologies that surpass the performance of digital computers. Information input into a qubit, the smallest unit of quantum computation, ...

Quantum Physics Sep 6, 2024

New quantum error correction method uses 'many-hypercube codes' while exhibiting beautiful geometry

In work published in Science Advances, Hayato Goto from the RIKEN Center for Quantum Computing in Japan has proposed a new quantum error correction approach using what he calls "many-hypercube codes."

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