Concept

Fluctuation-dissipation theorem

Related publications (102)

Quantum Brownian Motion at Strong Dissipation Probed by Superconducting Tunnel Junctions

Klaus Kern, Markus Etzkorn, Jacob Senkpiel, Berthold Jäck

We have investigated the phase dynamics of a superconducting tunnel junction at ultralow temperatures in the presence of high damping, where the interaction with environmental degrees of freedom represents the leading energy scale. In this regime, theory p ...

Amer Physical Soc2017

Phase diagram for inertial granular flows

Matthieu Wyart, Eric DeGiuli

Flows of hard granular materials depend strongly on the interparticle friction coefficient mu(p) and on the inertial number I, which characterizes proximity to the jamming transition where flow stops. Guided by numerical simulations, we derive the phase di ...

2016

Gauge Invariance of Thermal Transport Coefficients

Aris Marcolongo, Loris Ercole, Paolo Umari

Thermal transport coefficients are independent of the specific microscopic expression for the energy density and current from which they can be derived through the Green-Kubo formula. We discuss this independence in terms of a kind of gauge invariance resu ...

Springer/Plenum Publishers2016

Contribution of spontaneous polarization and its fluctuations to refraction of light in ferroelectrics

Alexander Tagantsev

The expressions for the spontaneous polar contribution delta n (i) (s) to the principal values of the refractive index due to the quadratic electro-optic effect in ferroelectrics have been considered within the phenomenological approach taking into account ...

Maik Nauka/Interperiodica/Springer2016

Quantitative comparison of electron temperature fluctuations to nonlinear gyrokinetic simulations in C-Mod Ohmic L-mode discharges

Christian Gabriel Theiler

Long wavelength turbulent electron temperature fluctuations (k(y)rho(s)< 0.3) are measured in the outer core region (r/a> 0.8) of Ohmic L-mode plasmas at Alcator C-Mod [E. S. Marmar et al., Nucl. Fusion 49, 104014 (2009)] with a correlation electron cyclot ...

Amer Inst Physics2016

Sub-terahertz spectroscopy of magnetic resonance in BiFeO3 using a vector network analyzer

Jean-Philippe Ansermet, Arnaud Magrez, Emile Jacques de Rijk, Christian Caspers, Varun Paresh Gandhi

Detection of sub-THz spin cycloid resonances (SCRs) of stoichiometric BiFeO3 (BFO) was demonstrated using a vector network analyzer. Continuous wave absorption spectroscopy is possible, thanks to heterodyning and electronic sweep control using frequency ex ...

Amer Inst Physics2016

Thermodynamic properties of highly frustrated quantum spin ladders: Influence of many-particle bound states

Frédéric Mila, Bruce Normand

Quantum antiferromagnets have proven to be some of the cleanest realizations available for theoretical, numerical, and experimental studies of quantum fluctuation effects. At finite temperatures, however, the additional effects of thermal fluctuations in t ...

2016

Frequency fluctuations in silicon nanoresonators

Luis Guillermo Villanueva Torrijo, Eric Sage, Thomas Alava

Frequency stability is key to the performance of nanoresonators. This stability is thought to reach a limit with the resonator's ability to resolve thermally induced vibrations. Although measurements and predictions of resonator stability usually disregard ...

Nature Publishing Group2016

Air temperature investigation in microenvironment around a human body

Dusan Licina

The aim of this study is to investigate the temperature boundary layer around a human body in a quiescent indoor environment. The air temperature, mean in time and standard deviation of the temperature fluctuations around a breathing thermal manikin are ex ...

2015

Meso-scale ceramic hotplates - A playground for high temperature microsystems

Paul Muralt, Thomas Maeder, Bo Jiang

This paper presents a mesa-scale low-temperature co-fired ceramic (LTCC) hotplate system. Using embedded thick-film platinum heaters, the hotplate has been able to operate at about 600 degrees C in a reliable manner, while its operating temperature can be ...

Elsevier2015

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