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9 465 (0,473s)

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Non-equilibrium dynamics of open systems and fluctuation-dissipation theorems

The Non-Equilibrium Fluctuation-Dissipation Theorem is formulated within the Non-Equilibrium Green Function formalism.nThe relation of this theorem to a simplified kinetic theory of non-equilibrium dynamics of electrons in ...

Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

  • 2017
  • Jimp
  • Link
Result

Fluctuation of Electrical Polarisation in Piezoceramic Sensors.

Fluctuation of electrical polarisation is a source of the current and voltage noise in piezoceramic sensors. In the vicinity of the Curie temperature critical fluctuations exist. Using Nyquist theorem the current noise spec...

JA - Elektronika a optoelektronika, elektrotechnika

  • 2002
  • D
Result

A nonequilibrium extension of the Clausius heat theorem

We generalize the Clausius (in)equality to overdamped mesoscopic and macroscopic diffusions in the presence of nonconservative forces. In contrast to previous frameworks, we use a decomposition scheme for heat which is based on an exact variant of th...

BE - Teoretická fyzika

  • 2014
  • Jx
  • Link
Result

A limit theorem for small cliques in inhomogeneous random graphs

the method of moments, a limit theorem for the number of r-cliques in such random graphs the fluctuations are normal of order n^{r-1}, the fluctuations in the setting of W-random graphs may be of order 0, n^{r-1}, or n^{r-...

Pure mathematics

  • 2021
  • Jimp
  • Link
Result

A selection of nonequilibrium issues

Lecture notes from a minicourse given at the 5th Prague Summer School on Mathematical Statistical Physics that took place in September 2006.

BE - Teoretická fyzika

  • 2009
  • C
Result

Fluctuations in heat engines

based on systems as small as single atoms. At microscales, fluctuations are an inherent part of dynamics and thermodynamic variables such as work and heat fluctuate and limitations for the fluctuating output power and effi...

Physical sciences

  • 2022
  • Jimp
  • Link
Result

Observation of Mermin-Wagner behavior in LaFeO3/SrTiO3 superlattices

fluctuations, as suggested by the Mermin-Wagner theorem, has been questioned for finite and fluctuate to the lowest measured temperature as expected from the Mermin-Wagner theoremTwo-dimensional magnetic materials...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2024
  • Jimp
  • Link
Result

Observation of Mermin-Wagner behavior in LaFeO3/SrTiO3 superlattices

fluctuations, as suggested by the Mermin-Wagner theorem, has been questioned for finite and fluctuate to the lowest measured temperature as expected from the Mermin-Wagner theoremTwo-dimensional magnetic materials...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2024
  • Jimp
  • Link
Result

Entropy Production in an Elementary, Light Driven Micro-Machine

-propeller satisfies an appropriate fluctuation theorem that constrains the probability...

Optics (including laser optics and quantum optics)

  • 2020
  • Jimp
  • Link
Result

Unavoidability of nonclassicality loss in PT -symmetric systems

at all. This, however, violates the fluctuation-dissipation theorem. The second, more address this problem by manipulating the quantum fluctuating forces in the Heisenberg the contribution of reservoir fluctuations

Optics (including laser optics and quantum optics)

  • 2023
  • Jimp
  • Link
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