Inhibited Quantum Processes Through Repeated Measurements: an Approach to Quantum Zeno Effect

Cerdeira, Hilda A.; Crespo, Gastón A.; Proto, A. N.

doi:10.1590/s0103-97331997000400024

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The Effect Of the Quantum Confinement1

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2011

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“…These fittings are shown in figure 1 by the gray lines. It has been shown that, for excitons in QWs, the parameter m j = 3 is the more appropriate [22], and this value was assumed here.…”

Section: The Effect Of the Quantum Confinementmentioning

confidence: 99%

Effects of temperature on transition energies of GaAsSbN/GaAs single quantum wells

Lourenço

Silva

Dias

et al. 2011

J. Phys.: Condens. Matter

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The energy transitions of GaAsSbN/GaAs strained-layer single quantum wells (QWs), grown by molecular-beam epitaxy, are studied in detail, using photoluminescence (PL) and photoreflectance (PR) spectroscopies. The optical transitions energy observed in the PL and PR spectra of GaAsSbN/GaAs QWs show a strong decrease with a small increase in the N composition. These effects are explained through the interaction between the conduction band and a narrow resonant band formed by nitrogen states in the GaAsSbN alloy. The temperature dependence of ground-state energy of strained-layer QWs is analyzed using the Bose-Einstein relation in the temperature range from 9 to 295 K. The parameters that describe the temperature variations of the ground-state energies are evaluated and discussed.

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“…These fittings are shown in figure 1 by the gray lines. It has been shown that, for excitons in QWs, the parameter m j = 3 is the more appropriate [22], and this value was assumed here.…”

Section: The Effect Of the Quantum Confinementmentioning

confidence: 99%