Part one of this series, published in the January 2007 issue, discussed how to use linear superposition in the steady-state analysis of multiple heat-source systems. However, linear superposition also ...

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 ...

IT MAY soon be possible to extract information from a quantum object – and even manipulate it – without simultaneously destroying its delicate quantum state. The result would be a boon for quantum ...

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 ...