Results 11 to 20 of about 29,156 (262)

Superconducting Quantum Critical Phenomena [PDF]

open access: yesReports in Advances of Physical Sciences, 2018
When the superconducting transition temperature Tc sufficiently approaches zero, quantum fluctuations are expected to be overwhelmingly amplified around zero temperature so that the mean-field approximation may break down.
Yong Tao
doaj   +1 more source

Valence-skipping and quasi-two-dimensionality of superconductivity in a van der Waals insulator

open access: yesNature Communications, 2022
Fluctuation of the cation valence state plays a crucial role in emergent quantum phenomena in correlated electron systems. Here, the authors demonstrate a valence-fluctuation-driven insulator-to-superconductor transition in the van der Waals insulator ...
Caorong Zhang   +18 more
doaj   +1 more source

Ultrastrong magnon–magnon coupling dominated by antiresonant interactions

open access: yesNature Communications, 2021
Ultrastrong light-matter interactions with dominant antiresonant terms are expected to give rise to interesting phenomena such as quantum fluctuation suppression.
Takuma Makihara   +15 more
doaj   +1 more source

Dynamic fluctuation phenomena in double membrane films [PDF]

open access: yesJournal of Experimental and Theoretical Physics, 1998
Dynamics of double membrane films is investigated in the long-wavelength limit including the overdamped squeezing mode. We demonstrate that thermal fluctuations essentially modify the character of the mode due to its nonlinear coupling to the transversal shear hydrodynamic mode. The corresponding Green function acquires as a function of the frequency a
Kats, E., Lebedev, V., Malinin, S.
openaire   +3 more sources

An Application of Pontryagin’s Principle to Brownian Particle Engineered Equilibration

open access: yesEntropy, 2017
We present a stylized model of controlled equilibration of a small system in a fluctuating environment. We derive the optimal control equations steering in finite-time the system between two equilibrium states.
Paolo Muratore-Ginanneschi   +1 more
doaj   +1 more source

Thermodynamics of Superdiffusion Generated by Lévy–Wiener Fluctuating Forces

open access: yesEntropy, 2018
Scale free Lévy motion is a generalized analogue of the Wiener process. Its time derivative extends the notion of “white noise” to non-Gaussian noise sources, and as such, it has been widely used to model natural signal variations ...
Łukasz Kuśmierz   +2 more
doaj   +1 more source

Size and shape fluctuations of ultrasoft colloids

open access: yesPhysical Review Research, 2021
An ultrasoft colloidal particle fluctuates due to its flexibility. Such fluctuation is essential for colloidal structure and dynamics, but is challenging to quantify experimentally.
Huarui Wu   +5 more
doaj   +1 more source

Plasma jet characteristics in long DC arc with ring-shaped anode

open access: yesJournal of Fluid Science and Technology, 2018
Fluctuation characteristics of plasma jet flow in an innovative long DC arc system with ring-shaped anode were successfully clarified on the basis of the high-speed camera visualization.
Manabu TANAKA   +3 more
doaj   +1 more source

Scattering approach to the thermodynamics of quantum transport

open access: yesNew Journal of Physics, 2015
The thermodynamic entropy production for the scattering processes of noninteracting bosons and fermions in mesoscopic systems is shown to be related to the difference between the Connes–Narnhofer–Thirring entropy per unit time, characterizing temporal ...
Pierre Gaspard
doaj   +1 more source

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