Current fluctuations in the transient regime: An exact formulation for mesoscopic systems

2008 ◽  
Vol 77 (7) ◽  
Author(s):  
Zimin Feng ◽  
Joseph Maciejko ◽  
Jian Wang ◽  
Hong Guo
Keyword(s):  
Transient Regime ◽  
Current Fluctuations ◽  
Exact Formulation ◽  
Mesoscopic Systems

Current fluctuations in mesoscopic systems with Andreev scattering

1996 ◽  
Vol 53 (24) ◽  
pp. 16390-16402 ◽  
Author(s):  
M. P. Anantram ◽  
S. Datta
Keyword(s):  
Current Fluctuations ◽  
Mesoscopic Systems ◽  
Andreev Scattering

scholarly journals Unifying Theory for Casimir Forces: Bulk and Surface Formulations

Universe ◽  
2021 ◽  
Vol 7 (7) ◽  
pp. 225
Author(s):  
Giuseppe Bimonte ◽  
Thorsten Emig
Keyword(s):  
Free Energy ◽  
Path Integral ◽  
Casimir Force ◽  
Hamiltonian Formulation ◽  
Current Fluctuations ◽  
Practical Application ◽  
Casimir Forces ◽  
Surface Approach ◽  
Maxwell Stress Tensor ◽  
Electromagnetic Fluctuation

The principles of the electromagnetic fluctuation-induced phenomena such as Casimir forces are well understood. However, recent experimental advances require universal and efficient methods to compute these forces. While several approaches have been proposed in the literature, their connection is often not entirely clear, and some of them have been introduced as purely numerical techniques. Here we present a unifying approach for the Casimir force and free energy that builds on both the Maxwell stress tensor and path integral quantization. The result is presented in terms of either bulk or surface operators that describe corresponding current fluctuations. Our surface approach yields a novel formula for the Casimir free energy. The path integral is presented both within a Lagrange and Hamiltonian formulation yielding different surface operators and expressions for the free energy that are equivalent. We compare our approaches to previously developed numerical methods and the scattering approach. The practical application of our methods is exemplified by the derivation of the Lifshitz formula.

Impact of critical current fluctuations on the performance of a coated conductor tape

2019 ◽  
Vol 32 (12) ◽  
pp. 124001 ◽  
Author(s):  
Fedor Gömöry ◽  
Ján Šouc ◽  
Miroslav Adámek ◽  
Asef Ghabeli ◽  
Mykola Solovyov ◽  
...  
Keyword(s):  
Critical Current ◽  
Current Fluctuations ◽  
Coated Conductor
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