Programme

P.6 -- Poster, VCTP-44

Date: Tuesday, 30 July 2019

Time: 08:30 - 10:00

Spontaneous decay rate and Casimir--Polder interaction of a two-level atom in a Bragg-reflector cylindrical structure

Nguyen Dung Chinh (1), Tran Minh Hien (2)

(1) Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City 700000, Viet Nam; (2) Industrial University of HCM City, 12 Nguyen Van Bao Street, 4th Ward, Go Vap District, Ho Chi Minh City, VietNam

Spontaneous decay rate and Casimir--Polder interaction of an excited two-level atom enclosed in a distributed-Bragg-reflector cylindrical waveguide are studied. Conditions for resonances to exist are established by comparing the distributed-Bragg-reflector-waveguide results with those of a perfectly reflecting hollow waveguide, and taking advantage of the simplicity of the Green tensor of the latter. The Casimir--Polder potential is obtained and found to exhibit a potential well along the cylinder axis. The results remain valid when realistic frequency-dependent permittivities of Si and SiO_2 are used.

Presenter: Nguyen Dung Chinh