Superradiant transfer of quantized orbital angular momentum between light and atoms in a ring trap

Author(s)

Piovella, N. ; Robb, G. R. M. ; Bachelard, R.

• Document type: Journal article
• Source: PHYSICAL REVIEW A; v. 106, n. 1, p. 5-pg., 2022-07-28.

Abstract

The orbital angular momentum (OAM) from a laser beam can be coherently transferred to a Bose-Einstein condensate in a ring trap, in quantized units of h??. The light-matter coupling allows for the superradiant transfer of the atoms between the discrete OAM states. Tuning the ring parameters and winding number of the pump light, specific angular momentum states can be populated. This in turn allows control of the emission to generate light with OAM different from that of the pump, as the atomic ring imprints its contribution on the scattered light. (AU)

• FAPESP's process: 18/15554-5 - Transport and localization of light in two and three dimensions
• Grantee: Romain Pierre Marcel Bachelard
• Support Opportunities: Research Grants - Young Investigators Grants - Phase 2
• FAPESP's process: 19/13143-0 - Cold atoms, photons, and quantum correlations
• Grantee: Celso Jorge Villas-Bôas
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/12842-2 - Cooperative stochastic heating and optical binding with cold atoms
• Grantee: Romain Pierre Marcel Bachelard
• Support Opportunities: Regular Research Grants