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 study, analytically as well as numerically, the dynamics that arises fromthe interaction of a polar polarizable rigid rotor with single unipolarelectromagnetic pulses of varying length, $\Delta \tau$, with respect to therotational period of the rotor, $\tau_r$. In the sudden, non-adiabatic limit,$\Delta \tau \ll \tau_r$, we derive analytic expressions for the rotor'swavefunctions, kinetic energies, and field-free evolution of orientation andalignment. We verify the analytic results by solving the correspondingtime-dependent Schr\"odinger equation numerically and extend the temporal rangeof the interactions considered all the way to the adiabatic limit, $\Delta \tau\gg \tau_r$, where general analytic solutions beyond the field-free case are nolonger available. The effects of the orienting and aligning interactions aswell as of their combination on the post-pulse populations of the rotationalstates are visualized as functions of the orienting and aligning kick strengthsin terms of populations quilts. Quantum carpets that encapsulate the evolutionof the rotational wavepackets provide the space-time portraits of the resultingdynamics. The population quilts and quantum carpets reveal that purelyorienting, purely aligning, or even-break combined interactions each exhibit asui generis dynamics. In the intermediate temporal regime, we find that thewavepackets as functions of the orienting and aligning kick strengths showresonances that correspond to diminished kinetic energies at particular valuesof the pulse duration.

Dynamics of polar polarizable rotors acted upon by unipolar electromagnetic pulses: From the sudden to the adiabatic regime