Category: Quantum Physics

Physicists in the United States, Austria and Brazil have shown that shaking ultracold Bose-Einstein condensates (BECs) can cause them to either divide into uniform segments or shatter into unpredictable splinters, depending on the frequency of the shaking. Source: https://phys.org/news/2019-03-quantum-splinters.html

Since the historic finding of gravitational waves from two black holes colliding over a billion light years away was made in 2015, physicists are advancing knowledge about the limits on the precision of the measurements that will help improve the next generation of tools and technology used by gravitational wave scientists. Source: https://phys.org/news/2019-03-quantum-behavior-room-temperature-visible.html

A new method allows the quantum state of atomic “qubits”—the basic unit of information in quantum computers—to be measured with twenty times less error than was previously possible, without losing any atoms. Accurately measuring qubit states, which are analogous to the one or zero states of bits in traditional computing, is a vital step in… Continue reading Extremely accurate measurements of atom states for quantum computing

An international team of researchers has measured a quantum power increase in a quantum boost engine for the first time. In their paper published in the journal Physical Review Letters, the group outlines their experiments with quantum boost engines and what they learned. Source: https://phys.org/news/2019-03-quantum-power-boost.html

Pinning down the source of protons’ spin is surprisingly hard to do. Source

DESY and MPSD scientists have created high-order harmonics from solids with controlled polarization states, taking advantage of both crystal symmetry and attosecond electronic dynamics. The newly demonstrated technique might find intriguing applications in petahertz electronics and for spectroscopic studies of novel quantum materials. Source: https://phys.org/news/2019-03-the-taming-of-light-screw.html

Physicists at EPFL propose a new “quantum simulator”: a laser-based device that can be used to study a wide range of quantum systems. Studying it, the researchers have found that photons can behave like magnetic dipoles at temperatures close to absolute zero, following the laws of quantum mechanics. The simple simulator can be used to… Continue reading In a new quantum simulator, light behaves like a magnet

The realization of so-called topological materials—which exhibit exotic, defect-resistant properties and are expected to have applications in electronics, optics, quantum computing, and other fields—has opened up a new realm in materials discovery. Source: https://phys.org/news/2019-03-topological-conductor-spiraling-crystal-key.html

A new computer program that spots when information in a quantum computer is escaping to unwanted states will give users of this promising technology the ability to check its reliability without any technical knowledge for the first time. Source: https://phys.org/news/2019-03-leakage-quantum.html