Squeezed vacuum, coherent and dc field effects on optical multistability via decay-induced quantum beats

摘要: Effect of the relative control phase as well squeezed parameter on optical switching process bi-multistable behaviour are investigated in detail for a four-level Y-type atomic system; presence field (coherent + dc fields) with vacuum and quantum interference from spontaneous emission. The results indicated that (a) assists to decrease rate via makes on/off points more rapid compared normal case, (b) effects between output increases processes than case. In addition, we have demonstrated possibility displaying beats novel type cooperative diagram.