English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We analyze theoretically the entanglement between two non-planar and lightidentical molecules (e.g., pyramidal as $NH_3$) that present inversion doublingdue to the internal spatial inversion of their nuclear conformations bytunneling. The peculiarity of this system lies in the simplicity of this typeof molecular system in which two near levels can be connected by allowedelectric dipole transition with considerable value of the dipole momenttransition and negligible spontaneous emission because the transition is in themicrowave or far-infrared range. These properties give place to entanglementstates oscillating by free evolution with frequency determined by thedipole-dipole interaction and negligible spontaneous decay, which allows toconsider an efficient quantum Zeno effect by frequent measurements of one ofthe entangled states. If the molecules are initially both in the upper (orlower) eigenstate, the system evolves under an external radiation field, whichcan induce oscillations of the generated entangled states, with frequency ofthe order of the Rabi frequency of the field. For a certain detuning, asymmetric entangled state, eigenstate of the collective system can bepopulated, and given its negligible spontaneous emission, could be maintainedfor a time only limited by external decoherence processes which could beminimized. Although the data used are those of the $NH_3$ molecule, othermolecules could present the same advantageous features.

Entangling non planar molecules via inversion doublet transition with negligible spontaneous emission