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

Partially spatially coherent qubits are more immune to turbulent atmosphericconditions than coherent qubits, which makes them excellent candidates forfree-space quantum communication. In this article, we report the generation ofpartially spatially coherent qubits in a spontaneous parametric down-conversion(SPDC) process using a Gaussian Schell model (GSM) pump beam. For thisnon-linear process, we demonstrate experimentally for the first time, thetransfer of spatial coherence features of the pump (classical) to the biphotons(quantum) field. Also, the spatial profiles of partially coherent qubitsgenerated in type-I and type-II non-collinear SPDC process are experimentallyobserved and multi-mode nature of partially coherent photons (qubit) isascertained. These investigations pave the way toward the efficient generationof partially spatially coherent qubits with a tunable degree of spatialcoherence, which lead to wide range of applications in frontier areas such asquantum cryptography, teleportation, imaging, and lithography.

Experimental generation and characterization of partially spatially coherent qubits