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Journal of Optoelectronical Nanostructures
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jafari, M. (2016). Casimir ‎effects‎‎ of nano objects in fluctuating scalar and electromagnetic fields: Thermodynamic investigating. Journal of Optoelectronical Nanostructures, 1(3), 1-16.
Marjan jafari. "Casimir ‎effects‎‎ of nano objects in fluctuating scalar and electromagnetic fields: Thermodynamic investigating". Journal of Optoelectronical Nanostructures, 1, 3, 2016, 1-16.
jafari, M. (2016). 'Casimir ‎effects‎‎ of nano objects in fluctuating scalar and electromagnetic fields: Thermodynamic investigating', Journal of Optoelectronical Nanostructures, 1(3), pp. 1-16.
jafari, M. Casimir ‎effects‎‎ of nano objects in fluctuating scalar and electromagnetic fields: Thermodynamic investigating. Journal of Optoelectronical Nanostructures, 2016; 1(3): 1-16.

Casimir ‎effects‎‎ of nano objects in fluctuating scalar and electromagnetic fields: Thermodynamic investigating

Article 1, Volume 1, Issue 3, Autumn 2016, Page 1-16  XML PDF (545 K)
Document Type: Articles
Author
Marjan jafari*
Department of Physics‎, ‎Faculty of Science‎, ‎Imam Khomeini International University‎, ‎34148‎ - ‎96818‎, ‎Ghazvin‎, ‎Iran
Abstract
 Casimir entropy is an important aspect of casimir effect and at the nanoscale is visible. In this paper, we employ the path integral method to ‎obtain a‎ ‎general‎ relation for casimir entropy and ‎i‎nternal energy of arbitrary shaped objects in the presence of two, three and four dimension scalar fields and ‎the‎ electromagnetic field. For this purpose, using Lagrangian and based on a perturbative approach, a series expansion in susceptibility function of the medium was obtained for the Casimir force between arbitrary shaped objects foliated in a scalar or vector fluctuating field in arbitrary dimensions. The finite temperature corrections are derived and using it, we obtain the casimir entropy and internal energy of two nano ‎rib‎bons immersed in the scalar field and two nanospheres immersed in the scalar field and the electromagnetic field. The casimir entropy of two nanospheres immersed in the electromagnetic field ‎behave ‎differently‎ in small interval of temperature variations.  .
Keywords
Casimir ‎e‎ntropy; Internal energy; Path integral method; Negative entropy; nano sphere
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