| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000390692 |
| ISSN: | 0103-9733 |
| Autores: | Saha, Surajit1 Ghosh, Manas2 |
| Instituciones: | 1Bishnupur Ramananda College, Department of Chemistry, Bishnupur, West Bengal. India 2Visva Bharati University, Department of Chemistry, Santiniketan, West Bengal. India |
| Año: | 2016 |
| Periodo: | Feb |
| Volumen: | 46 |
| Número: | 1 |
| Paginación: | 41-49 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | We perform a rigorous analysis of the profiles of a few diagonal and off-diagonal components of linear (αxx, αyy, αxy, and αyx), first nonlinear (βxxx, βyyy, βxyy, and βyxx), and second nonlinear (γxxxx, γyyyy, γxxyy, and γyyxx) polarizabilities of quantum dots exposed to an external pulsed field. Simultaneous presence of multiplicative white noise has also been taken into account. The quantum dot contains a dopant represented by a Gaussian potential. The number of pulse and the dopant location have been found to fabricate the said profiles through their interplay. Moreover, a variation in the noise strength also contributes evidently in designing the profiles of above polarizability components. In general, the off-diagonal components have been found to be somewhat more responsive to a variation of noise strength. However, we have found some exception to the above fact for the offdiagonal βyxx component. The study projects some pathways of achieving stable, enhanced, and often maximized output of linear and nonlinear polarizabilities of doped quantum dots driven by multiplicative noise |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Física de materia condensada, Puntos cuánticos, Impurezas, Polarizabilidad, Campos pulsados, Dopaje, Ruido blanco |
| Keyword: | Physics and astronomy, Condensed matter physics, Quantum dots, Impurities, Polarizability, Pulsed fields, Doping, White noise |
| Texto completo: | Texto completo (Ver PDF) |
