Although the interstitial hydrogen atom would seem to be one of the simplest defect centres
in any lattice, its solid state chemistry is in fact unknown in many materials, not least amongst …

Polymeric allotropes of nitrogen and nitrogen‐rich compounds containing N N single
bonds are attractive candidates for high‐energy‐density materials. However, the low kinetic …

X-ray diffraction and optical spectroscopy techniques are used to characterize stable and
metastable transformations of nitrogen compressed up to 170 GPa and heated above 2500 …

Using density functional theory calculations, many researchers have predicted that various
tungsten nitride compounds N 1− x W x (x< 1 2) will be “ultraincompressible” or “superhard,” …

We study the spontaneous excitation of a two-level atom in the presence of a perfectly
reflecting mirror, when the atom, or the mirror, is uniformly accelerating in the framework of …

Quantum entanglement harvesting in the relativistic setup attracted a lot of attention in recent
times. Acquiring more entanglement within two qubits may be very desirable to establish …

The transformation pathway in high-pressure solid nitrogen from N 2 molecular state to
polymeric cg-N phase was investigated by means of ab initio molecular dynamics and …

Single-bonded polymeric nitrogen (PN) synthesized under high pressure was highly
delivered for its valuable application prospects on high-energy-density materials and …

Recently, the unusual high-pressure cubic gauche structure of solid nitrogen (cg-N) was
experimentally synthesized. Our first-principles calculations reveal that cg-N represents a …

We investigate the transition rates of uniformly accelerated two-level single and entangled
atomic systems in empty space as well as inside a cavity. We take into account the …