Search results for qubits

Quantum Physics May 9, 2024

Researchers develop compiler acceleration technology for quantum computers

Researchers have succeeded in developing a technique to quickly search for the optimal quantum gate sequence for a quantum computer using a probabilistic method.

Quantum Physics May 15, 2024

Spooky states and figure eights: Stepping into the quantum computing 'ring'

Deep in outer space, invisible hands mold the universe. One is dark matter, an unseen substance thought to bind distant galaxies. The other is dark energy, a force believed to push stellar structures apart with gravity-defying ...

Quantum Physics Apr 9, 2024

Measuring improvement in the design of pulses for quantum systems

Seeking a method for reducing error in noisy quantum systems, Kajsa Williams and Louis-S. Bouchard, researchers at the Center for Quantum Science and Engineering at the University of California, Los Angeles, implemented and ...

Quantum Physics May 1, 2024

Generating graph states of atomic ensembles via photon-mediated entanglement

Graph states, a class of entangled quantum states that can be represented by graphs, have been the topic of numerous recent physics studies, due to their intriguing properties. These unique properties could make them particularly ...

Superconductivity May 22, 2024

The tunable coupling of two distant superconducting spin qubits

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 ...

Quantum Physics Apr 29, 2024

Quantum challenge to be solved one mile underground

Radiation from space is a challenge for quantum computers as their computation time becomes limited by cosmic rays. Researchers from Chalmers University of Technology, Sweden, and University of Waterloo in Canada are now ...

Condensed Matter Jun 3, 2024

Scientists bring crystal clarity to diamond's quantum signals

They say that one can miss the forest for the trees. But it's often worth taking a closer look at the trees to make sense of the dense, brambly whole. That's what a Stanford University group did to tackle a thorny quantum-information ...

Quantum Physics Apr 18, 2024

Research reveals a surprising topological reversal in quantum systems

In principle, one shouldn't compare apples to oranges. However, in topology, which is a branch of mathematics, one must do just that. Apples and oranges, it turns out, are said to be topologically the same since they both ...

Optics & Photonics Jun 3, 2024

A framework to construct quantum spherical codes

To reliably perform complex, large-scale calculations, computing systems rely on so-called error correction schemes, techniques designed to protect information against errors. These techniques are perhaps even more essential ...

Optics & Photonics May 15, 2024

Physicists demonstrate first metro-area quantum computer network in Boston

It's one thing to dream up a quantum internet that could send hacker-proof information around the world via photons superimposed in different quantum states. It's quite another to physically show it's possible.

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