You have full access to this article via your institution. Phase-coherent quantum superposition states are characterized by first-order coherence. First-order coherence measures the expectation value ...

One of the great challenges for quantum physicists is to find quantum behaviour in macroscopic objects. There are obvious examples of quantum behaviour on a large scale, such as superconductivity and ...

A team of physicists experimentally produces quantum-superpositions, simply using a mirror. Standing in front of a mirror, we can easily tell apart ourselves from our mirror image. The mirror does not ...

Wouldn't it be fascinating to live in New York and London at the same time? In the standard of everyday life, this is equivalent to daydreaming or sheer fantasy. Nevertheless, this is a perfectly ...

We propose the use of hybrid entanglement in an entanglement swapping protocol, as means of distributing a Bell state with high fidelity to two parties. The hybrid entanglement used in this work is ...

Quantum states can only be created and observed under tightly controlled conditions. A research team from Innsbruck, Austria, has successfully created so-called hot Schrödinger cat states in a ...

Scientists have designed a new experiment to test the foundations of quantum mechanics at the large scale. Standard quantum theory places no limit on particle size and current experiments use larger ...

Scientists created quantum superposition states at temperatures up to 60 times hotter than their environment, challenging the assumption that quantum effects require extreme cold. This discovery could ...

Killing horizon: a thought experiment suggests that the presence of a black hole can decohere a quantum superposition. (Courtesy: Shutterstock/Rost9) A new thought experiment suggests that the mere ...

The standard format for adaptive logics offers a generic and unifying formal framework for defeasible reasoning forms. One of its main distinguishing features is a dynamic proof theory by means of ...