6533b833fe1ef96bd129b93b
RESEARCH PRODUCT
Steady-state generation of negative-Wigner-function light using feedback
Peter Van LoockCristian JoanaTim ByrnesHui Dengsubject
PhysicsQuantum PhysicsSteady state (electronics)business.industryFeedback controlPhase (waves)FOS: Physical sciences02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesNonlinear systemOpticsQuantum Gases (cond-mat.quant-gas)Quantum mechanics0103 physical sciencesWigner distribution function010306 general physics0210 nano-technologybusinessCondensed Matter - Quantum GasesQuantum Physics (quant-ph)description
We propose a method of producing steady-state coherent light with negative Wigner functions in nonlinear media combined with feedback control. While the nonlinearities are essential to produce the Wigner negativities, this alone is insufficient to stabilize steady-state light with negativities. Using feedback control to control the phase in the cavity, we find that this produces significant total negativities for reasonable experimental parameters. The negative Wigner function is produced continuously and does not appear to be restricted to low-amplitude light. The technique is applicable to systems such as exciton-polaritons, where strong natural nonlinearities are present.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-12-01 |