Search results for qubits

Quantum Physics Mar 18, 2024

Quantum computers can solve combinatorial optimization problems more easily than conventional methods, research shows

The traveling salesman problem is considered a prime example of a combinatorial optimization problem. Now a Berlin team led by theoretical physicist Prof. Dr. Jens Eisert of Freie Universität Berlin and HZB has shown that ...

Quantum Physics Mar 18, 2024

Elegant use of noise for quantum computing

Scientists around the world work hard to rinse quantum systems for noise, which may disturb the function of tomorrow's powerful quantum computers. Researchers from the Niels Bohr Institute (NBI) have found a way to use noise ...

Quantum Physics Mar 13, 2024

A new ion trap for larger quantum computers

Researchers at ETH have managed to trap ions using static electric and magnetic fields and to perform quantum operations on them. In the future, such traps could be used to realize quantum computers with far more quantum ...

Optics & Photonics Mar 6, 2024

Photons that make quantum bits 'fly' for stable exchange of information in quantum computers

Two physicists at the University of Konstanz are developing a method that could enable the stable exchange of information in quantum computers. In the leading role: photons that make quantum bits "fly."

Condensed Matter Mar 5, 2024

Shortcut to success: Toward fast and robust quantum control through accelerating adiabatic passage

In work published in Physical Review Letters researchers at Osaka University's Institute of Scientific and Industrial Research (SANKEN) used "the shortcuts to the adiabaticity (STA)" method to greatly speed-up the adiabatic ...

Condensed Matter Feb 26, 2024

Resurrecting niobium for quantum science

For years, niobium was considered an underperformer when it came to superconducting qubits. Now, scientists supported by Q-NEXT have found a way to engineer a high-performing niobium-based qubit and take advantage of niobium's ...

Quantum Physics Feb 19, 2024

Quantum computing engineers perform multiple control methods in just one atom

Quantum computing engineers at UNSW Sydney have shown they can encode quantum information—the special data in a quantum computer—in four unique ways within a single atom, inside a silicon chip.

Optics & Photonics Feb 15, 2024

A new record for atom-based quantum computers: 1,000 atomic qubits and rising

Making quantum systems more scalable is one of the key requirements for the further development of quantum computers because the advantages they offer become increasingly evident as the systems are scaled up. Researchers ...

Superconductivity Feb 12, 2024

Flowermon: A superconducting qubit based on twisted cuprate van der Waals heterostructures

Quantum technology could outperform conventional computers on some advanced optimization and computational tasks. In recent years, physicists have been working to identify new strategies to create quantum systems and promising ...

Optics & Photonics Feb 10, 2024

Researchers demonstrate multi-photon state transfer between remote superconducting nodes

Over the past few decades, quantum physicists and engineers have been trying to develop new, reliable quantum communication systems. These systems could ultimately serve as a testbed to evaluate and advance communication ...

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