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Quantum Physics May 30, 2024

Using entangled particles to create unbreakable encryption

The discovery of quantum mechanics opened the door to fundamentally new ways of communicating, processing, and protecting data. With a quantum revolution well underway, long unimaginable opportunities are coming within our ...

Quantum Physics May 29, 2024

Research team shows theoretical quantum speedup with the quantum approximate optimization algorithm

In a new paper in Science Advances, researchers at JPMorgan Chase, the U.S. Department of Energy's (DOE) Argonne National Laboratory and Quantinuum have demonstrated clear evidence of a quantum algorithmic speedup for the ...

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 May 1, 2024

Scientists show that there is indeed an 'entropy' of quantum entanglement

Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lami from the University of Amsterdam have shown, through probabilistic calculations, that there is indeed, as had been hypothesized, a rule of entropy ...

Condensed Matter Apr 23, 2024

Study shines light on properties and promise of hexagonal boron nitride, used in electronic and photonics technologies

Single-photon emitters (SPEs) are akin to microscopic lightbulbs that emit only one photon (a quantum of light) at a time. These tiny structures hold immense importance for the development of quantum technology, particularly ...

Quantum Physics Mar 24, 2024

Beyond cloning: Harnessing the power of virtual quantum broadcasting

In a new study, scientists propose the concept of "virtual quantum broadcasting," which provides a workaround to the longstanding no-cloning theorem, thereby offering new possibilities for the transmission of quantum information.

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 ...

Nanophysics Feb 12, 2024

Breakthrough in single-photon integration holds promise for quantum computing, cryptography

A recent study has unveiled a significant advancement toward the on-chip integration of single-photon sources at room temperature. This achievement represents a significant step forward in the field of quantum photonics and ...

Quantum Physics Jan 25, 2024

Shaping the dawn of the quantum age

Electrons that spin to the right and the left at the same time. Particles that change their states together, even though they are separated by enormous distances. Intriguing phenomena like these are completely commonplace ...

Nanophysics Jan 19, 2024

Quantum physicist uses graphene ribbons to build nanoscale power plants

When Mickael Perrin started out on his scientific career 12 years ago, he had no way of knowing he was conducting research in an area that would be attracting wide public interest only a few years later: Quantum electronics. ...

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