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Effects of Sha.non entropy a.d electric field on pola.on in RbCl tria.gula. qua.tum dot

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Chinese Physics B 2016年第4期25卷 432-435页

作者： M Tiotsop a.j.fotue S C Kenfa.k N Issofa.H Fotsin L C Fa. Mesoscopic a.d Multila.ers Structures La.ora.ory Department of Physics Faculty of Science University of Dschang La.ora.ory of Electronics a.d Signa. Processing Department of Physics Faculty of Science University of Dschang

In this pa.er, the time evolution of the qua.tum mecha.ica. sta.e of a.pola.on is exa.ined using the Peka. type va.ia.iona. method on the condition of the electric-LO-phonon strong-coupling a.d pola. a.gle in RbC1 tria.gula. qua.tum dot. We obta.n the eigenenergies, a.d the eigenfunctions of the ground sta.e, a.d the first excited sta.e respectively. This system in a.qua.tum dot ca. be trea.ed a. a.two-level qua.tum system qubit a.d the numerica. ca.cula.ions a.e performed. The effects of Sha.non entropy a.d electric field on the pola.on in the RbC1 tria.gula. qua.tum dot a.e a.so studied.

关键词： Sha.non entropy pola.on electric field tria.gula. qua.tum dot

Energy levels of ma.neto-optica. pola.on in spherica. qua.tum dot—Pa.t 1:Strong coupling

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j.urna. of Semiconductors 2015年第9期36卷 1-8页

作者： a.j.fotue S.C.Kenfa.k N.Issofa.M.Tiotsop H.Fotsin E.Ma.nimo L.C.Fa. Mesoscopic a.d Multila.ers Structures La.ora.ory Department of PhysicsFaculty of ScienceUniversity of Dschang La.ora.ory of Electronics a.d Signa. Processing Department of PhysicsFaculty of ScienceUniversity of Dschang

We investiga.e the influence of a.ma.netic field on the ground sta.e energy of a.pola.on in a.spherica. semiconductor qua.tum dot （QD） using the modified LLP method. The ground sta.e energy is split into sub-energy levels a.d there is a.degenera.y of energy levels. It is a.so observed tha. the degenera.e energy increa.e with the electron-phonon coupling consta.t a.d decrea.e with the ma.netic field. The numerica. results show tha., under the influence of ma.netic field a.d the intera.tion with the tota. momentum a.ong the z-direction, the split energy increa.es a.d decrea.es with the longitudina. a.d the tra.sverse confinement length, respectively.

关键词： ma.netic field tota. momentum modified LLP pola.on energy qua.tum dot

Electric a.d ma.netic optica. pola.on in qua.tum dot—Pa.t 1: strong coupling

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j.urna. of Semiconductors 2015年第7期36卷 1-6页

作者： a.j.fotue N.Issofa.M.Tiotsop S.C.Kenfa.k M.P.Ta.ue Dj.mmo H.Fotsin a.d L.C.Fa. Mesoscopic a.d Multila.ers Structures La.ora.ory Department of PhysicsFaculty of ScienceUniversity of Dschang La.ora.ory of Mecha.ics a.d Modeling of Physica. Systems Faculty of ScienceUniversity of Dschang La.ora.ory of Electronics a.d Signa. Processing Department of PhysicsFaculty of ScienceUniversity of Dschang

We investiga.ed the influence of electric field a.d ma.netic field on the ground sta.e energy ofpola.on in spherica. semiconductor qua.tum dot （QD） using a.modified Lee Low Pines （LLP） method. The numerica. results show the increa.e of the ground sta.e energy with the increa.e of the electric field a.d the decrea.ing with the ma.netic field. The modula.ion of the electric field, ma.netic field a.d the confinement lengths lea. to the control of the decoherence of the system.

关键词： electric field ma.netic field modified LLP pola.on energy qua.tum dot

Electro-ma.netic wea. coupling optica. pola.on a.d tempera.ure effect in qua.tum dot

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j.urna. of Semiconductors 2015年第10期36卷 9-15页

作者： M.Tiotsop a.j.fotue S.C.Kenfa.k N.Issofa.a.V.Wirngo M.P.Ta.ue Dj.mmo H.Fotsin L.C.Fa. Mesoscopic a.d Multila.ers Structures La.ora.ory Department of PhysicsFaculty of ScienceUniversity of Dschang La.ora.ory of Mecha.ics a.d Modeling of Physica. Systems Faculty of ScienceUniversity of Dschang La.ora.ory of Electronics a.d Signa. Processing Department of PhysicsFaculty of ScienceUniversity of Dschang

We investiga.e the influence of the electric field a.d ma.netic fields on the ground sta.e energy of a.pola.on in a.spherica. semiconductor qua.tum dot （QD） using the modified Lee Low Pines （LLP） method. The numerica. results show the increa.e of the ground sta.e energy with the increa.e of the electric field a.d the electron- phonon coupling consta.t, a.d the decrea.e with the ma.netic field a.d the longitudina. confinement length. It is a.so seen tha. the tempera.ure is a. increa.ing function of the cyclotron frequency a.d the coupling consta.t wherea. it decrea.es with the electric field strength. The modula.ion of the electric field, the ma.netic field a.d the confinement length lea.s to the control of decoherence in the system.

关键词： electric field ma.netic field modified LLP pola.on energy qua.tum dot tempera.ure