TY - JOUR

T1 - Lambda-scheme feedback spectroscopy

AU - Tomilin, V. A.

AU - Ilichov, L. V.

PY - 2017/1/1

Y1 - 2017/1/1

N2 - We report a theoretical investigation of a control scheme of a single-L system in pump-probe feedback spectroscopy. The feedback controls the phase of one of the fields, and its action is triggered by a nontrivial unraveling of the quantum operation of detection of spontaneous photons emitted by an atom. Within the framework of Markovian master equations, it is shown that the shape and width of the 'dark' resonance of coherent population trapping can be controlled within very wide limits. In addition, sharp resonant-like structures in the field's work dependence on the Rabi frequencies are revealed and explained.

AB - We report a theoretical investigation of a control scheme of a single-L system in pump-probe feedback spectroscopy. The feedback controls the phase of one of the fields, and its action is triggered by a nontrivial unraveling of the quantum operation of detection of spontaneous photons emitted by an atom. Within the framework of Markovian master equations, it is shown that the shape and width of the 'dark' resonance of coherent population trapping can be controlled within very wide limits. In addition, sharp resonant-like structures in the field's work dependence on the Rabi frequencies are revealed and explained.

KW - Coherent population trapping

KW - Dark resonances

KW - Quantum feedback

UR - http://www.scopus.com/inward/record.url?scp=85020197617&partnerID=8YFLogxK

U2 - 10.1070/QEL16360

DO - 10.1070/QEL16360

M3 - Article

AN - SCOPUS:85020197617

VL - 47

SP - 474

EP - 478

JO - Quantum Electronics

JF - Quantum Electronics

SN - 1063-7818

IS - 5

ER -