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New Technology Could Boost Quantum Computing and Superconducting Electronics

Superconductors -- materials that conduct electricity without resistance -- are remarkable. They provide a macroscopic glimpse into quantum phenomena, which are usually observable only at the atomic level. Beyond their physical peculiarity, superconductors are also useful. They're found in medical imaging, quantum computers, and cameras used with telescopes.

12 Feb 2021

Hubble Telescope Reveals Smaller Black Holes in Core-Collapsed Globular Cluster

Researchers have made an unexpected discovery while they were expecting to detect an intermediate-mass black hole at the core of the globular cluster, called NGC 6397.

12 Feb 2021

Scientists Reveal Distant Galaxy with Unexpected Appearance

Researchers have challenged the existing knowledge about the formation of galaxies by unraveling images of a young galaxy in the early life of the Universe, which looks astonishingly mature.

12 Feb 2021

A New Quantum Switch for Electronics

A Russian physicist and his international colleagues studied a quantum point contact (QCP) between two conductors with external oscillating fields applied to the contact.

12 Feb 2021

Swirlonic Super Particles Baffle Physicists at University of Leicester

In recent years, active, self-propelled particles have received growing interest amongst the scientific community. Examples of active particles and their systems are numerous and very diverse, ranging from bacterium films to flocks of birds or human crowds.

12 Feb 2021

Iconic Stellar Explosion Reveals Unique 'Heart-Shape' Honeycomb Structure

A unique 'heart-shape', with wisps of gas filaments showing an intricate honeycomb-like arrangement, has been discovered at the centre of the iconic supernova remnant, the Crab Nebula. Astronomers have mapped the void in unprecedented detail, creating a realistic three-dimensional reconstruction. The new work is published in Monthly Notices of the Royal Astronomical Society.

11 Feb 2021

Scientists Use “Quantum Squeezing" to Accelerate the Search for Dark Matter

For nearly a century, scientists have worked to unravel the mystery of dark matter--an elusive substance that spreads through the universe and likely makes up much of its mass, but has so far proven impossible to detect in experiments. Now, a team of researchers have used an innovative technique called "quantum squeezing" to dramatically speed up the search for one candidate for dark matter in the lab.

11 Feb 2021

Using Cosmological Data to Place Tighter Constraints on Quantum Gravity Phenomenology

A description of gravity compatible with the principles of quantum mechanics has long been a widely pursued goal in physics. Existing theories of this 'quantum gravity' often involve mathematical corrections to Heisenberg's Uncertainty Principle (HUP), which quantifies the inherent limits in the accuracy of any quantum measurement.

11 Feb 2021

Simple Quantum Schemes Help Reduce Communication Flaws

Among the most active fields of research in modern physics, both at an academic level and beyond, are quantum computation and communication, which apply quantum phenomena such as superposition and entanglement to perform calculations, or to exchange information.

11 Feb 2021

Using Quantum Computing to Study Structure and Properties of Magnetic Materials

A multi-institutional team became the first to generate accurate results from materials science simulations on a quantum computer that can be verified with neutron scattering experiments and other practical techniques.

10 Feb 2021

Cyclicity of Quantum Causal Models

Causal reasoning is ubiquitous - from physics to medicine, economics and social sciences, as well as in everyday life. Whenever we press the button, the bell rings, and we think that the pressing of the button causes the bell to ring. Normally, causal influence is assumed to only go one way - from cause to effect - and never back from the effect to the cause: the ringing of the bell does not cause the pressing of the button that triggered it.

10 Feb 2021